Titanium Backup: None on chosen platform
It’s always a horrifying experience to find that the backups you so carefully took previously now don’t work. Unfortunately, i’ve just run in to this problem.
After sending my phone back for repair, I attempted to restore the backups I took beforehand using Titanium Backup. While it recognised the backups, every one said “1 backup. None on chosen platform”. Unfortunately, a quick Google only turned up a handful of other people who were having the same problem, with no resolution.
After a bit of fiddling however, I came across a simple resolution. On the Backup/Restore tab, tap “Click to edit filters” and then “Filter by platform”. In the Filter by ROM build date section, you’ll probably see two or more values: only one of which is checked. Check all of them, then tap the checkmark to accept your new filter. Your backups should now read “1 backup: Latest xx/yy/zzzz 00:00” and can be restored.