As I always think it's good when someone updates with an outcome -
Good news bad news.
Bad news - they can't regas my A/C
Good news - looks like I've sorted the dash cam issue, although it goes against what you said as from what you said, what I did shouldn't have made a difference, but it seems to have done.
Was wrong.
The G-sensor, not the parking G-sensor,
is responsible for blocking video files and
sending them to the RO folder.
Viofo recommends setting it to low sensitivity.
I know you're only quoting Viofo directly but the change I made based on this shouldn't have made a difference.
As I said, my G-Sensor was always "LOW" and files were getting sent to the RO folder for fun.
My Parking G-Sensor was set to high, but your Viofo URL says this doesn't send files to the RO folder (so in theory it shouldn't matter what I have it set at).
Regardless, I left G-Sensor at LOW and reduced Parking G-Sensor to MEDIUM.
I've just now checked the results and there is no RO folder at all.
I see the filenames begin at 0001 and end at 0565 so I've just selected all the video files to check and it tallied - 565 files, so nothing is missing.
So while that URL says Parking G-Sensor shouldn't impact the result, it seems to have.
Either way, it appears the issue is now resolved.