Crossfader FX "Mix Now" transition not holding sync.

Not that I use it much but when I am using the mix now auto transition with the Smartfader FX the beats are falling out of sync during the transition then re-alligning once the transition has completed.
If I use the crossfader manually It syncs perfectly
Both the crossfader fx and tempo blend are activated.
I have tweeked and played with quite a few settings without success.
The problem occurs on both my ipad 9th gen and my iphone XR.


Hi @daniel_curley, when creating new topics, please do not forget to answer the questions in our template with specific details about your setup not just “iPad” or “Latest Version”. This helps all of our community moderators to provide the most effective support to users with the utmost efficiency. Thanks!

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):

Please also navigate to djay Settings>Advanced and take a screenshot of the Neural Mix Quality settings.


This video is on my iphone
Model XR 2019 ios 17.4.1
version 5.1.6
no controller

Which cross fader effects are you using? I don’t think with 60% you will be able to use the neural mix ones.

I also have the same problem with my ipad
9th gen 2021 os 17.4.1
version 5.1.6
no controller
neural mix quality 100 percent

and also my mac
mac OS Monterey version 12.7.4 2015
version 5.1.6
neural mix quality 80 percent

I have videos of the ipad and mac if required

I don’t use neural mix as i stream a lot through apple music


Thanks for the video and additional details @daniel_curley.

  1. What is the source of these songs (Apple Music Streaming or Local Files)?
  2. If Local Files, are these store on device or on an external drive and what format are they in?
  3. My initial thought was a performance issue on your older iPhone, but if you are seeing the same thing on the iPad 9th Gen this seems less likely.
  4. I’m going to send this to the engineering team to see if they can reproduce the issue on their setup.
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Mp3s from files work fine no problem
Both Local Files and Apple music are where it’s going wrong.
Here’s an example of each from my ipad.

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Thanks for the additional info @daniel_curley. The engineering team was able to replicate this and is looking into a fix.

That’s good to hear.
Thank you @Slak_Jaw.

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You’re welcome @daniel_curley. I’ll report back here when I have more news.

The same happens in AutoMix