0.2 client app is with tons of bugs

my pc setup is very common with 5600x + 32g RAM + 4060, and game is on a pci-e 4 ssd. Overall fps is about 70, but still facing bugs

1. graphic freezing, time and time during endgame map
2. black screen while playing, GGG icon spinning, then all explored area recover as unexplored again

Tried to delete cache files but no luck.

Anyone can help me out?

Could be the nvidia display driver crashing and reloading, it's a feature they added in 0.2 to prevent full client crash caused by the video card. You might want to change your display driver to a recent or less recent one, I heard one of the recent nvidia driver was causing crashes but I don't know which one exactly.