Sound dissappear in short periods

Hi. When I play a clip in the timeline, the sound dissappear in short periods of time... The sound is fine, if I export the clip and play it in a mediaplayer... It's only with playback in the timeline - But it also happen, if I "bridge" the sound in audition... I'm using Premiere Pro 2024, Windows 11 - 64bit, Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz 2.59 GHz, 16 gb ram

The camera is Black Magic Pocket Cinema Camera 6k pro