No, I didn't downgrade the version.
I can only talk about those that I change
These settings are reset to their default settings.
Show frames per second
Key chart height
Indentation in the tree
Darken Unselected Skeletons
Middle mouse button pan
Go to frame
All of these options are reset every time the spine is launched with an updated version.
But there are also pluses)
Since the spine is updated secretly and without notifications,
then you can understand if the settings were reset on their own - it means a new version has appeared, hurray! )
sorry for my English