Yes, thanks, it works (I'm person from the thread you linked, just a different name).

I just flashed the newest Mobian nightly to an SD card and tried that, still the same error. So this doesn't seem to be OS related. Any idea what this could be related to or which place would be best to report this? I hope this is not a hardware fault, but then again the camera works fine apart from this problem (I think). I toggled the camera kill switch which made the camera unavailable as expected, but the still the same issue afterwards.

Thanks for the info. I'll report to the Manjaro bug tracker then. I thought this was the right place to report since it seems to be related to this patch: https://gitlab.manjaro.org/manjaro-arm/packages/core/linux-pinephone/-/blob/5.12-megi/media-ov5640-Implement-autofocus.patch

Good to know that it works on Mobian. Although I just tried an SD card with an older version of Mobian I had lying around (maybe 2 months old) and there exactly the same error occured.