[jecilop]

SOLVED: found a backup of global settings and replaced those files. All is back to normal now.

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I could use some help figuring out what has happened and how to fix.
My computer often restarts on it's own (Wdw's 11 ignores when you tell it not to do that on this laptop). It seems to have issues when a lot of memory is in use by Calibre and will restart, typically without problems.

It recently blue screened while Calibre was open (again, likely memory issue with Calibre and other intensive programs running.) NOW, when I open Calibre, my interface settings are all gone (virtual library tabs even though the Virt Libs exist, row spacing, menu bar settings including plug-ins not visible yet they are installed), but my specialized things like columns and icons and colors in preferences as well as book details view are still there.
Also missing are easy switches to my other libraries. They no longer list.
I notice that everything is larger also.
I did manage to use a quick shortcut to some of the other libraries through custom calibre links. Those restore the quick ability to easily switch vs. adding back an existing.

I also noticed that the "splash" screen now shows where it has been set to off for years now. I did not update Calibre before this. I tried an update to see if something would change, but it just updated the version and is still on these wrong settings.

My "Calibre Config directory-Custom" is in the same location and must be being referenced since it's pulling the column icons from it. When I got to Prefs/Misc/ and click the Open Calibre config folder, it goes to the correct so I think the environmental variable for it must be correct still.

Any input on a simple fix to get my settings back? It's A LOT of customization I've had in place over the years. I haven't had to change it in so long I fear I don't remember how!