Broken CSS classes


I have not been updating my site for maybe 9 months, but I have always kept Bricks updated and currently running the latest version.

Now I want to pick up working on my site and all my CSS classes seems to be broken somehow.

When I select an element in the structure tree and select the assigned class, non of the parameters I have tweaked is highlighted with the yellow dot, which means I can’t see the changes I have made to the class.

Has this happened to anyone and can someone help me? This is very frustrating and I can’t continue working on my site because of this, and I don’t have time to recreate everything from scratch.