So, in the spirit of pedantry, I thought i'd start a bug thread, because some of this stuff was bothering me.
Firstly, Brennan Risling's thac0 is too high, the poor bastard only hits backstab on criticals and had trouble killing a skeleton (i know thieves suck, but this seemed odd).
The description for the circlet of golden flowers mentions an ability called "critical mass curing," but the item does no such thing.
Raamilat, the drow f/m in Suldanesselar, can't use scrolls. The emote appears, but he carries on attacking straight away. Everyone else I fought was fixed by 4.1.
Even if you have all the components for the truth long sword, cromwell won't make it (cespanar does, however).
Not sure if this one is by design, but captain egeissag has infinite (i think, at least 20) absolute immunity spells, is unbreachable and un-lower resistance-able, and is only killable via lots of luck. In fact, come to think of it, there are a few enemies that dispelling magic (ruby ray, breach etc) doesn't work on for no apparent reason. There was a bunch, but atm only draconis in dragon form springs to mind.
That is all.