Can't view old revisions of some Theorytabs

bug reports
1

I can view https://www.hooktheory.com/theorytab/history/ciara/body-party/verse but not either of the revisions linked from there. They both give 500 errors. (Incidentally, what happened to revision 1?)

For https://www.hooktheory.com/theorytab/history/alicia-keys/fallin/chorus the history page itself gives a 500 error.

2

OK, so Alicia Keys was fixed, but it’s still impossible to view the past revisions of Ciara’s Body Party…