Freeze frame between cuts during playback

Hi there

I'm experiencing a very brief freeze frame between cuts during play back (a couple of frames or so).

Working with C70 raw footage, but have Proxied it to Apple ProRes High Quality.

The Proxies are turned on. I'm playing back at 1/4 quality.

I'm on a 2022 M1 iMac which normally plays back everything just fine, on the latest version of Prem.

Seems like it might be an issue with the audio as when I delete the audio (seperately recorded WAVs), it seems to resolve it. It'll then be ok on some other section of the timeline which still has audio underneath.... but then it will start doing it again.

The audio is 48khz, so is the sequence.

Anyone else come across this issue?

Cheers in advance for any help!