On 7/24/2018 at 8:33 PM, bronson732 said:Fixed this. To anybody curious: I installed another theme and then reverted back to the classic theme. It's still unclear to me, what caused this issue - but, well... It works now!
How do you revert back to classic theme?
I've got this same problem. I was using the Design>Link Widget and added a block on the header. Realised my mistake so deleted it. However, the layout still stays messed up.