With the new chat widgets in place, I have a couple of bugs to report here.
My current chat widget settings are 10 lines maximum, spread across 3/4 of the screen at 1600x1080 resolution, windowed mode.
Pre December 1st update, when I used /check, the character's bazaar comment would appear on top of my chat log, obscuring it. Post update, checking any character results in a full crash out of the client.
I've replicated this around 4 times with 3 different PCs. Doesn't crash when checking monsters.