Admin interface won't start after app hang/close.

[pc1]

I've been running BI v4.8.6.3 x64 on win10 v1909 build 18363.752, service runs at startup, and I manually start BlueIris admin when I need to adjust something, worked fine until today. Today I was running the BI admin console window, then it hung, and I had to close it. Now when I attempt to start the admin interface, I get the splash screen momentarily, then nothing. Multiple reboots, same problem. Perhaps there's a locked/open file somewhere, but I don't know where. The service is running fine, I just can't start the admin interface. If it helps, the value in \HKEY_LOCAL_MACHINE\SOFTWARE\Perspective Software\Blue Iris\consolePID changes at every launch attempt of the admin interface. \BI\logs are unremarkable.
Any ideas?

 

[pc1]

I may have resolved this myself, I'll describe it here in the chance others may find it useful.
I manually stopped the BlueIris service, then I could successfully launch the BI admin console. The BI service also then restarted automatically.