When I try to use Skill points showing as "Remaining", the "Things to be Done" area gives me a message that "Too many Skill ranks chosen - some need to be removed."
I was debating whether to submit this since I can't seem to reproduce it in another character and it is just one character, but it still seems to be a bug of some sort because of the internal disagreement.
Looking at the skills tab, I see 8 left unspent. So that should have been flagged.
Yep. If you spend any of those 8 skill points, it says there are too many skill ranks chosen, but nothing if they are left unspent. I tried other characters but couldn't get the same results, and advanced another wizard to 20th level to see if that would do it, but it didn't. The character hasn't been leveled down or anything like that that seem to produce errors, although I used it as a test character on various builds.
Hmm, this character has gotten its skill points out of sync. 156 skill points have been granted in total, and 156 points have been spent, so the TODO is showing the correct values. The PCG file has 8 points listed as available for level 20, which is what is shown on the skills tab, but that is incorrect. So either the PCG has been edited or it has been affected by a long fixed bug at some point in its history. It may be a result of the old UI allowing an edit of the skills to add extras (which only ever half worked).
Skills to-do is now based only on the remaining values in he levels list on the skills tab.