No changes to CC behavior. Some vanilla enemies getting a bump a few patches ago to match the threat level of expansion enemies is likely the largest contributor to the opinion going around.
The interaction between armor and physical damage works exactly as it was coded to work, thus it is not a bug. There was simply no point in ripping out an entire system and rewriting it when the game was balanced around this behavior.
I’m not sure what mechanics we can’t explain. Except that vendor in Port Valbury duplicating, there must be a portal to hell at those world coordinates.
With some detailed information provided by a Praetorian recently, we were able to pinpoint the cause of monsters choosing to remain in the spawn areas of the Crucible and have addressed two separate bugs for v1.1.7.0. I have not observed the issue anymore, or I would if I ever played the Crucible I guess.
In most cases, CTDs can be addressed on the user end with driver/software updates, verifying game files, checking Antivirus software. That said, code changes happen virtually every patch, so it’s not out of the question that obscure issues that only affect certain system configurations can be introduced.