Invisible bosses, monsters, ground effects, player and monster skills

Bug report reference number: 2,300,932,891

I'm unable to see many bosses, monsters, ground effects, player or monster skills, etc. Invisible skills include monster's incoming projectiles like frostbolts, monster on-death explosions, and Sunder player attacks. Normal monsters, bosses and breach monsters are also frequently invisible.

Seems like a shader or cache problem; assets are not loading or caching.

I've tried everything I can think of without success, including manually clearing all shader caches, using the Vulkan renderer, turning knobs in Nvidia control panel, etc.

Running latest Nvidia drivers on a RTX 3070, Intel 8th gen, 32 GB ram, PCIe NVMe ssd, Win10.

Also, loading zones frequently takes upwards of 2 minutes, regardless of zone being loaded.

These issues did not exist in 3.26.

The game is basically unplayable since launch day. It has taken a lot of frustration and annoyance to prompt me to make this forum post.