Great news that it does start. That ensures we could focus on OpenCL only. Yes start the Issue in GitHub to get better documentation if this happens with the new version of darktable (see below). Like Steven shared, we had some recent reports of issues but you are the first one sharing good details.
- Do you know what graphics card your {C has?
- Do you know the drivers? Can you go to the vendor website and update the drivers?
- Do you have an antivirus running? Any alerts from it? Can you disable for a few minutes to test that’s not causing the issue?
The next version of darktable is 4.6 and should be released around 21Dec. In the forum we share a pre release version of it to get early feedback on windows. Can you install it and see if it resolves the issues? darktable windows insider program 12/3