Custom CSS Presets lost!

Hello,

today, for the n-th time Builder has forgotten and lost my Custom CSS Presets although I saved and named them. For example, I have a region in the middle of the screen, under the header which contains Posts (List of Posts) draggable element which is supposed to show 3 post from a custom category in a custom taxonomy. I've designed the boxes a certain way and I did so in a Custom CSS Preset named 'destaque3'. Today, among other issues for which I've opened tickets, I see that the Builder has forgotten and lost my custom CSS presets. I cannot find them in the search and I need to start from scratch. Again.

Please tell me that I'm doing something wrong or you can fix this as otherwise it is pointless for me to continue.

Regards,

Georgi