Hello, I have the same issue first in 1.5.7. I thought it will be resolved in beta, but the same in 1.5.8
Interesting. It only happens after 10-20+ min playing. Restarting the game will temporarily fix this issue. It's also not every character, but mostly the "new" one that you meet during this session after n minutes. I hope this can help.
And here are the full details you've been requesting:
OS: Windows 10, x64 (build 19041)
GPU: Nvidia GeForce 1050 Ti
GPU Driver Version: 27.21.14.6140 (from 22.01.21)
CPU: AMD Ryzen 3 220G with Radeon Vega Graphics $ CPUs, ~3.5Ghz
RAM: 16 GB
Motherboard: ROG STRIX B350-F GAMING
Storage Device (HDD/SSD): Samsung SSD 860 EVO 500GB
EDIT: Ah, sorry, haven't noticed your recent reply. It's good to know you're already on top of this issue!
Good luck to your team, and I hope it won't be too much of a headache.
For other people, if you have the same case as I do, you can still keep playing while restarting the game each time it happens.
EDIT 18.02.2021: I can also confirm it still happens with me under the same repro steps.