I'm pretty certain that many dashcam viewer failures are not caused by 0k files.
I very rarely get stub/0k files. At least, not since I velcro'd my media drive to the car to stop it flapping in the wind and taking movenment off the USB plug/socket.
Being sad, I just double checked an old media card that had been in use, but not continuously, between 23/12 and 12/05. The number of folders that had stub/0k files were:
SavedClips 50GB 7 / 55 folders (~50 of 1623 files)
SentryClips 64GB 1 / 171 folders (2 of 2137 files)
Notes to myself:
Of which all but 2, both consecutive folders in saved clips, had no more than 2 minutes worth of 0k files, but typically just a minutes outage. The 2 consecutive folders that had more of an occurrence had 26 0k files between them, largely concentrated across several minutes of recording. This quite possibly coincided with when the media drive enclosure became unstuck from the velcro in cold weather and the old flapping in the wind problem reoccurring. Oddly, one of these clips, whilst being in saved (dasham) clips, were actually sentry clips from the car parked up and an adjacent car leaving within 10 minutes after the corruption. And on second folder, a whole host of unplayable files, but around 2-7MB in size, rather than the typical 30MB ish. Again, car was in sentry but these ended up in saved clips.
I also checked the current media card, unplugged as our USB is not currently working. Not a single 0k file on it across 13/05 to 19/05. These were all recorded on 2020.12.11.2 and some recorded whilst being serviced at Tesla! I think their 2m is much closer than my 2m shall we say...
Before going to SC, part of this drive was used to check the dashcam viewer, which didn't play in the viewer. So I think, dashcam viewer failures are not only caused by 0k files.