I did a little update this morning which fixes the issue with the pages not fading out.
Also, I thought more about the customizer settings disappearing. This could have to do with the name of the folder that laytheme is in.
If maybe you have changed the name of the folder "lay" to "lay_something_else" in "wp-content" -> "themes", then the customizer settings get lost. Because wordpress only remembers the customizer settings based on the foldername of the theme.
But if you change the foldername to what you had before, the customizer settings should be back.