Hello support, I have a very similar problem, but since I don’t have any caching plugins on my site, I don’t know what to do anymore.
My problem is that I can’t edit the design of my templates. When I click on Email Templates, it appears like this: https://prnt.sc/YMqea9z0dnAO , that is, I can’t click on anything, because the background overlaps everything.
I’ve already removed all the plugins and left only FluentCRM, I’ve redone the .htacess, I’ve increased the memory, I’ve already gone back to 3 previous versions and nothing has worked.