My main character (NG Bard, 9th lev) was about to level up to 10th after going above 160,000 XP. (I have TotSC installed so the XP cap is 161,000 if I know correctly.) What happened was he gained some HP (fine) but his pickpocket ability went all the way down from 90% to 25%. I never saw anything like that happen before. Is that due to some AD&D core rules that I don’t know of or simply an annoying bug that has to be fixed? (By the way, isn’t a Bard supposed to get a THACO improvement when reaching 10th level? Cause that didn’t happen either…)
This is all the more annoying since I’m very close to finishing BG1 and starting BG2 with my exported hero. But do I really want to start off with a 25% pickpocket ability instead of an almost perfect 90%? Or should I postpone levelling up to BG2 hoping that it will treat me better? (On second thoughts: it's possible that my pickpocket ability was really set to 10% (base) + 15% (for a dexterity of 18) = 25% but why should this happen at leveling up???)
Has anybody ever experienced something similar and solved it?