I had a copy of 3.3 Catchbox and installed it, and of course it said there was an update pending last night, this morning, 3.4 was installed and I have know idea why that is happening, I don’t know is auto installing the update, but it is on all my catchbox sites, so here is work around that seems to be working until update fixes style.css file that causes the problem,
I replaced that style.css file from 3.3 and changed version number to 3.4 and it seems to stick and all seems to be working for now.
Hope this helps, it was easy to change.