Thanks for the detailed report.
I was unaware you were not using the split attack parameter, so I didn't think to look into that as the cause of those problems. I'll see what I can find about the normal crit % reverting on its own too.
I'll look into changing the extension to show those params regardless of show block, or split attack being enabled. That's honestly how it should have been to begin with, and I probably bungled something up during an update a while back that no one noticed until you came along, lol.