djay pro 2: preview of videoclips without music track is not working...?

the little videoclips that are a part of the program can’t be played as preview. The videoclips won’t start. The one with a music track are also not started but the music starts to play in preview - hmm…?

the pictures show the two different situations:

Hi there,

the preview is working is previewing audio only at the moment.
Please note that if you preview “Get Funky” which is an audio and video file, they audio is previewed.