*edit* I followed the guide here verbatim and had no issues. Third party formatter and all.
Point of clarification:
Are you saying you used a 3rd party formatter for the TeslaCam partition?
You will need the 3rd-party
Fat32Formatter utility to format the music partition, as Windows cannot format a partition larger than 32GB in FAT32.
Do not use this utility to format the TeslaCam partition, this is what causes the corruption that stops the dashcam from working.
I think this is worth investigating, and I'll probably try to take a look in the near future.
I'd like to try to get the minimum repro.
1. insert USB drive into Windows PC
2. remove all partitions from USB drive
3. create <= 32GB partition titled TeslaCam
4. (optional?) use remaining space to create additional partition titled Other
5. (optional?) format the 2nd partition
6. format the 1st partition using Fat32Formatter as FAT32
7. eject USB drive from Windows PC
8. insert USB drive into Tesla
9. (within days) drive exhibits corruption issue with Tesla dashcam feature
10. remove USB drive from Tesla
11. insert USB drive into Windows PC
10. format the 1st partition using Computer Management / Disk Management / right-click / Format... using FAT32
11. eject USB drive from Windows PC
12. insert USB drive into Tesla
13. drive no longer exhibits corruption issue with Tesla dashcam feature
@SomeJoe7777 - Is this correct?
If yes, then perhaps identifying the issue looks like this:
1. insert USB drive into Windows PC
2. remove all partitions from USB drive
3. create <= 32GB partition titled TeslaCam
4. format the 1st partition using Fat32Formatter as FAT32
5. create "fragile.img" image of 1st partition
6. format the 1st partition using Computer Management / Disk Management / right-click / Format... using FAT32
7. create "stable.img" image of 1st partition
8. compare fragile.img and stable.img to identify what step 4 is doing differently
Also, for anyone using a > 32GB partition and
not having issues, what formatter are you using for that partition? If the answer is 'Mac' in most (all?) cases, then we might want to look at the "mac.img" as well.