Sometimes invincible mobs + anti-casting spots

After the last few updates I noticed two big problems:
1. Sometimes you face mobs which block 100% of the attacks.
As every mob is walking and attacking and other mobs take damage, it cannot be a latency problem. It is unrelated to the kind of attack, physical attacks with my wand fail as well as different spells. But at the same time the mob is able to successfully attack you. If you walk around a bit he can be hit again.

2. If you are standing near a wall you can't cast spells, the character animation is shown but nothing happens. And as casting only character this is really annoying. Also it happens sometimes if you are very near to an enemy. Biggest problem is in corridors which walls are not 90° to the ground with a hard edge but a round connection as it seems that here you have to stay away from the wall even further.

Same thing is happening to me right now.

All the mobs in my game are invincible, logged off for 4 hours, same thing.

Fine on my other characters, just this one, I can't do any type of damage, even tried joining random parties, same thing.

thank you.

lol...