Preview playback of cached composition has issues

Hi, 

I'm having constant issues with preview playback of cached frames.

I have i9 13900 Intel cpu with 128 GB RAM and fast SSD for storage and separate SSD for cache.

When palying a preview with sound the playback slowdowns and shutters very often even the frames are cached. What's more frustrating when changing the sound layer eg. its volume, cache is gone and it rebuilds itself again.