# Missing waveform and no audio M4A local file **URL:** \ **Category:** Bug Reports\ **Tags:** macOS\ **Created:** [April 17, 2025, 1:38am UTC](https://community.algoriddim.com/t/missing-waveform-and-no-audio-m4a-local-file/35032 "2025-04-17T01:38:09Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![Donn](https://community.algoriddim.com/letter_avatar_proxy/v4/letter/d/7ea924/32.png) [@Donn](https://community.algoriddim.com/u/Donn)\ **Post date:** [April 17, 2025, 1:38am UTC](https://community.algoriddim.com/t/missing-waveform-and-no-audio-m4a-local-file/35032/1 "2025-04-17T01:38:09Z")
macbook pro 2.3ghz 8 core sonoma 14.3.1 djay pro 5.3 ddj400 Hi, 5.3 update I was playing a track and suddenly the audio stopped. I noticed at the same time the waveform disappeared. When I stopped the track and loaded again it played ok, luckily it wasn’t at a gig ☹ Thanks! ---
**Author:** ![Akrilovy](https://community.algoriddim.com/user_avatar/community.algoriddim.com/akrilovy/32/9928_2.png) [@Akrilovy](https://community.algoriddim.com/u/Akrilovy)\ **Post date:** [April 18, 2025, 11:18pm UTC](https://community.algoriddim.com/t/missing-waveform-and-no-audio-m4a-local-file/35032/3 "2025-04-18T23:18:13Z")
is the file type M4A by any chance? I sometimes have this when preparing tracks, but not at live gigs. I already submitted a bug report like that for handling M4A files specifically. As a workaround when you see this happen - immediately get instant doubles on the other deck and fade up. I made this action automatic in my mind 🙂 hope it gets fixed someday. But as of now, you are the first person to get the same bug as me who reported it. thanks! ---
**Author:** ![Donn](https://community.algoriddim.com/letter_avatar_proxy/v4/letter/d/7ea924/32.png) [@Donn](https://community.algoriddim.com/u/Donn)\ **Post date:** [April 19, 2025, 12:22am UTC](https://community.algoriddim.com/t/missing-waveform-and-no-audio-m4a-local-file/35032/5 "2025-04-19T00:22:32Z")
Thanks Akrilovy! The file is Apple MPEG-4 from the Itunes store. Here’s the file for the Dev [https://community-assets.algoriddim.com/original/2X/0/0bdbd55c2fbff193188c7a13af1c898fbed94a85.m4a](https://community-assets.algoriddim.com/original/2X/0/0bdbd55c2fbff193188c7a13af1c898fbed94a85.m4a) . Thanks! ---
**Author:** ![Slak\_Jaw](https://community.algoriddim.com/user_avatar/community.algoriddim.com/slak_jaw/32/6517_2.png) [@Slak\_Jaw](https://community.algoriddim.com/u/Slak_Jaw)\ **Post date:** [April 19, 2025, 2:19pm UTC](https://community.algoriddim.com/t/missing-waveform-and-no-audio-m4a-local-file/35032/6 "2025-04-19T14:19:34Z")
Hi @Donn thanks for the video and sample file. Sorry for the delayed reply. I will pass these onto engineering for further analysis and report back as soon as I can. Thanks! Also thanks to @Akrilovy, for the M4A suggestion. Nice one! ---
**Author:** ![Akrilovy](https://community.algoriddim.com/user_avatar/community.algoriddim.com/akrilovy/32/9928_2.png) [@Akrilovy](https://community.algoriddim.com/u/Akrilovy)\ **Post date:** [September 24, 2025, 10:59am UTC](https://community.algoriddim.com/t/missing-waveform-and-no-audio-m4a-local-file/35032/9 "2025-09-24T10:59:59Z")
I’m still encounerting this periodically. Nobody else? ---
**Author:** ![DerKlangforscher](https://community.algoriddim.com/letter_avatar_proxy/v4/letter/d/3bc359/32.png) [@DerKlangforscher](https://community.algoriddim.com/u/DerKlangforscher)\ **Post date:** [February 9, 2026, 12:02pm UTC](https://community.algoriddim.com/t/missing-waveform-and-no-audio-m4a-local-file/35032/10 "2026-02-09T12:02:13Z")
I’ve the same problem, twice so far, but with a .flac-file… is there an official fix yet? My gear: MacBook Pro 16” 2019, 2.3 Ghz 8-Core, 64GB Ram Djay pro Version 5.5.2 Thanks in advance! ---
**Author:** ![Donn](https://community.algoriddim.com/letter_avatar_proxy/v4/letter/d/7ea924/32.png) [@Donn](https://community.algoriddim.com/u/Donn)\ **Post date:** [February 9, 2026, 12:23pm UTC](https://community.algoriddim.com/t/missing-waveform-and-no-audio-m4a-local-file/35032/11 "2026-02-09T12:23:52Z")
Yes,it’s still happening twice this month for me. (Feb. 2026) ---
**Author:** ![Slak\_Jaw](https://community.algoriddim.com/user_avatar/community.algoriddim.com/slak_jaw/32/6517_2.png) [@Slak\_Jaw](https://community.algoriddim.com/u/Slak_Jaw)\ **Post date:** [February 9, 2026, 4:45pm UTC](https://community.algoriddim.com/t/missing-waveform-and-no-audio-m4a-local-file/35032/12 "2026-02-09T16:45:55Z")
Hi @DerKlangforscher and @Donn, our engineering team is still troubleshooting this. ---
**Author:** ![DJGetNaked](https://community.algoriddim.com/letter_avatar_proxy/v4/letter/d/ea5d25/32.png) [@DJGetNaked](https://community.algoriddim.com/u/DJGetNaked)\ **Post date:** [March 21, 2026, 4:20pm UTC](https://community.algoriddim.com/t/missing-waveform-and-no-audio-m4a-local-file/35032/13 "2026-03-21T16:20:54Z")
**NOTE: Please use the search function above before posting to avoid creating duplicate topics.** - Device model: iPad Pro m4 - Version of operating system: latest IOS - Version of djay _(e.g. 5.1.2)_: latest - Hardware/controllers used: _Reloop Mixon 8 Pro_ - Hardware firmware version _(e.g. 1.0.1)_: latest - **Please consider sharing a short video or screenshots to help clarify your issue** A) SUMMARY OF ISSUE: - Some tracks load, the moment there is any interaction, it just stops playing - interactions such as hot cue, start stop, jog wheel Sync and key lock is on - Problem happens even when sync and key lock is off - Sometimes a track will be most of the way through playing and will just stop - I have tried restarting iPad, DJAY and re-analysing all songs - All songs are saved to iPad hard drive, not streamed - Most songs are aiff - This has been happening for the past 3-4 months (last 2 DJAY updates) but is getting worse - No buttons on the controller have any effect - complete track freeze on that channel - the other channels can still be used and will still play if a song is loaded - My DJAY collection library is 2 years old (in that I have more than 150 sessions/previous playlists saved) and roughly 4,000 songs at any given time ---
**Author:** ![Slak\_Jaw](https://community.algoriddim.com/user_avatar/community.algoriddim.com/slak_jaw/32/6517_2.png) [@Slak\_Jaw](https://community.algoriddim.com/u/Slak_Jaw)\ **Post date:** [March 21, 2026, 4:33pm UTC](https://community.algoriddim.com/t/missing-waveform-and-no-audio-m4a-local-file/35032/14 "2026-03-21T16:33:34Z")
Can you please share a short screen recording of this @DJGetNaked? ---
**Author:** ![Slak\_Jaw](https://community.algoriddim.com/user_avatar/community.algoriddim.com/slak_jaw/32/6517_2.png) [@Slak\_Jaw](https://community.algoriddim.com/u/Slak_Jaw)\ **Post date:** [March 28, 2026, 3:53pm UTC](https://community.algoriddim.com/t/missing-waveform-and-no-audio-m4a-local-file/35032/16 "2026-03-28T15:53:12Z")
Hello! It’s been a week since my last reply. I’m going to consider this topic completed for now so I can focus on others. However, please feel free to respond and we can definitely revisit this. Thanks! ---
**Author:** ![Michael\_Sumner](https://community.algoriddim.com/user_avatar/community.algoriddim.com/michael_sumner/32/20230_2.png) [@Michael\_Sumner](https://community.algoriddim.com/u/Michael_Sumner)\ **Post date:** [March 30, 2026, 11:41am UTC](https://community.algoriddim.com/t/missing-waveform-and-no-audio-m4a-local-file/35032/17 "2026-03-30T11:41:11Z")
I have been having the same issue. Has this really been solved? If so I’d love to know the answer. I’ve done 2 gigs now with DJay pro and both times a track has just stopped, i.e. still playing but no sound. I should say that this is after using autoplay for a couple of hours. Hitting ‘transiton’ sorts the problem but it’s still a problem to me. ---
**Author:** ![Slak\_Jaw](https://community.algoriddim.com/user_avatar/community.algoriddim.com/slak_jaw/32/6517_2.png) [@Slak\_Jaw](https://community.algoriddim.com/u/Slak_Jaw)\ **Post date:** [March 30, 2026, 11:54am UTC](https://community.algoriddim.com/t/missing-waveform-and-no-audio-m4a-local-file/35032/18 "2026-03-30T11:54:27Z")
Hi @Michael_Sumner, can you please share complete details about your setup? **Device Model** (ex. 2020 iPad Air 4th Gen): **Version of operating system** (ex. iOS 17.3.1): **Version of djay** (ex. 5.1.3): **Hardware/controllers used** (ex. Reloop Ready): **Hardware Firmware Version** (ex. 2.7): Since this sounds repeatable, can you please also capture and share a short screen recording of the issue to help clarify what’s happening? Thanks! ---
**Author:** ![DJGetNaked](https://community.algoriddim.com/letter_avatar_proxy/v4/letter/d/ea5d25/32.png) [@DJGetNaked](https://community.algoriddim.com/u/DJGetNaked)\ **Post date:** [March 30, 2026, 12:09pm UTC](https://community.algoriddim.com/t/missing-waveform-and-no-audio-m4a-local-file/35032/19 "2026-03-30T12:09:42Z")
Hi - yes I’ll record one for you over the next couple days as it still happens ---
**Author:** ![Slak\_Jaw](https://community.algoriddim.com/user_avatar/community.algoriddim.com/slak_jaw/32/6517_2.png) [@Slak\_Jaw](https://community.algoriddim.com/u/Slak_Jaw)\ **Post date:** [March 30, 2026, 12:29pm UTC](https://community.algoriddim.com/t/missing-waveform-and-no-audio-m4a-local-file/35032/20 "2026-03-30T12:29:51Z")
Sounds good. Thanks @DJGetNaked ---
**Author:** ![Michael\_Sumner](https://community.algoriddim.com/user_avatar/community.algoriddim.com/michael_sumner/32/20230_2.png) [@Michael\_Sumner](https://community.algoriddim.com/u/Michael_Sumner)\ **Post date:** [April 1, 2026, 7:26pm UTC](https://community.algoriddim.com/t/missing-waveform-and-no-audio-m4a-local-file/35032/21 "2026-04-01T19:26:32Z")
Using Macbook Pro A1502 i5@2.6Ghz 8GB 256GB SSD running Big Sur Latest version of Djay Pro (but not the one released yesterday) Hercules Impulse 500 Going to be very difficult to get a screen recording as it happens randomly (randomly after a couple of hours i guess) and anyway I’m too busy flirting with all the birds asking me for requests. All I can say is that everything looks normal but just no sound. Last time it happened the track was about 3/4 of the way through. I will try and note anything next time. I should add that this is on autoplay and i’m not touching anything on my laptop or controller at all. I have also noticed that a very few tracks load up and play but with no vocals. In that case I notice the EQ knob has turned right down (on screen) so i’m guessing that’s just a bad recording or something so i deleted those tracks. ---
**Author:** ![Slak\_Jaw](https://community.algoriddim.com/user_avatar/community.algoriddim.com/slak_jaw/32/6517_2.png) [@Slak\_Jaw](https://community.algoriddim.com/u/Slak_Jaw)\ **Post date:** [April 1, 2026, 8:46pm UTC](https://community.algoriddim.com/t/missing-waveform-and-no-audio-m4a-local-file/35032/22 "2026-04-01T20:46:27Z")
Thanks for the additional info @Michael_Sumner. Are you using a streaming service or local music? ---
**Author:** ![Michael\_Sumner](https://community.algoriddim.com/user_avatar/community.algoriddim.com/michael_sumner/32/20230_2.png) [@Michael\_Sumner](https://community.algoriddim.com/u/Michael_Sumner)\ **Post date:** [April 2, 2026, 6:20am UTC](https://community.algoriddim.com/t/missing-waveform-and-no-audio-m4a-local-file/35032/23 "2026-04-02T06:20:55Z")
Using local music ---
**Author:** ![Slak\_Jaw](https://community.algoriddim.com/user_avatar/community.algoriddim.com/slak_jaw/32/6517_2.png) [@Slak\_Jaw](https://community.algoriddim.com/u/Slak_Jaw)\ **Post date:** [April 2, 2026, 3:20pm UTC](https://community.algoriddim.com/t/missing-waveform-and-no-audio-m4a-local-file/35032/24 "2026-04-02T15:20:05Z")
Thanks for the additional info @Michael_Sumner. Hopefully one of you can catch this on video so I can share it with our engineering team. ---
**Author:** ![Slak\_Jaw](https://community.algoriddim.com/user_avatar/community.algoriddim.com/slak_jaw/32/6517_2.png) [@Slak\_Jaw](https://community.algoriddim.com/u/Slak_Jaw)\ **Post date:** [April 9, 2026, 10:47am UTC](https://community.algoriddim.com/t/missing-waveform-and-no-audio-m4a-local-file/35032/25 "2026-04-09T10:47:34Z")
Hi @DJGetNaked and @Michael_Sumner, it’s been a week. Have either of you been able to capture this on video yet? I haven’t been able to reproduce this myself. Thanks. [Next page](https://community.algoriddim.com/t/missing-waveform-and-no-audio-m4a-local-file/35032.md?page=2)