Sudden weird audio playback issues

It's been working fine for me for a long time, suddenly today while I'm hitting next and previous frame in the edit tab, to cut down things perfectly, it will get confused and start playing audio from a few frames either way (it seems random)

Playing back in real time is fine, and when I first pause it to change frames it works for a few frame skips, then randomly gets out of sync with itself again until I press play.

Any idea what might be causing this? It's becoming a pain since the client forgot to record camera audio so I'm manually matching audio to lip movements which is pretty hard when the next/previous frame is playing something different to the waveform

Yeah there's definitely something weird going on, my two tracks randomly started playing a few frames out of sync, I had to restart the project and they're fine now, not sure what's happening but there's some weird audio bug and earlier it was crackling until I reset the project as well

Also happens if I drag some stock footage over the top, that can send the audio out of sync until I reload the project, it makes no sense to why it happens. Just adding this extra since I'm finding a lot of bugs with the audio today...