LR Interface not changing

[SitATof]

Hi,

I had a nice setting before with everyting the right size. but just wanted to change LR interface with Edit/Preferences/Interface to modify font size and image background. and all of the sudden interface is stuck with settings I dont' like (fonts too small) and I can't modify it anymore.

For example if I change the background fill color to any other  setting, I will see the change displayed., but when I closae and launch LR again I get the original (unwanted) fill color.

I guess there's a temp config file somewhere I might need to delete, but have no idea where that could be.

Win11
LR Classic 14.1.1 

[SitATof]

Ok, I figured out that I needed to use the return key where I was exiting the parameter window with exit, and modifications were not saved.