Solved - Ray tracing on AMD GPU : immediate crash and forbids further launch

I was surprised to see Ray Tracing options on my 6900xt.
Tried to turn them on and got an immediate driver crash with a hard freeze back to desktop.

Since then it has been impossible to re launch the game ; leading immediately to a freeze and driver crash.

Is there a crash report produced? If so, could you include it please?

Restarted the machine and the game launches again.

I think it produced a bad interaction with AMD drivers (22.11.1 ; 22.11.2 had a terrible effect on frames last time I tried).

From first crash in game and 3 next ones are when I tried to re launch from driver, progressively removing settings in config file then the config file itself ( now launches again after restart).

crash_dump-2022-12-15-15.25.18-ac78e3df-3df9-43b4-a527-399b3129a45a.dmp (700.2 KB)

crash_dump-2022-12-15-15.28.51-3f8c5a4b-8af4-4b34-b103-2c1656b4f09b.dmp (437.2 KB)

crash_dump-2022-12-15-15.33.01-b221a762-83f5-4010-8877-ec2ce0a97c5c.dmp (431.1 KB)

crash_dump-2022-12-15-15.35.16-9970231e-f510-42b7-af7c-46f9dc551308.dmp (442.2 KB)

Thank you!

Tried it again and things were more smooth this time (no crash besides obvious lower frame rates).
Probably a freak accident.