I had a few problems involving skill timers and/or my character being "busy".
If the gump is open from a previous lore attempt then it won't always page through to the resists tab, and won't do the averages properly.
If the skill timer is active then it will attempt to pull the stats from the next thing I target, regardless of what method I'm using to target it with (in my case, usually the veterinary skill). I don't know where it's getting the numbers its using, but they're (obviously) not the real stats.
If things are very busy on my screen, for example I'm looting a corpse and vetting a pet, it won't move the lore gump to the corner of the screen and do the calculations.
All of these were noticed before you updated, I'm not sure if they've been changed or if these are things that it is even possible to fix but thought you would like to know.