Ah okay yes, an older firmware logged to the root directory of the SD but we did change this to a sub directory.
Like I said earlier the file name is the epoch time of the day divided by 60. So you can multiply it by 60 and you will have the time in seconds since January 1, 1970.
As to why moving them didn’t work, I am not sure but since it sounds like a firmware thing maybe Ray can chime in.