Unable to reinstall Aurora and ioDroid on FP5

From farther down in the thread you linked was this suggestion that I forwarded from from Vincent:

So within the iodé app settings (not from AppInfo) reset the blocker using “Data reset”, with above explanation why it may be relevant.

But now that you have solved it otherwise no matter. It is a strange one that only the FP5 specifically is showing this issue (according to Vincent).