Just upgraded to Blocs5 and I noticed 2 potential issues using macOS 10.15.7 on a stable system.
When I open Blocs5 and select any of the great looking templates, none of the images show in the any of the templates. Am I being silly and missing out a further stage?
Secondly, chosing a blank template opens a blank edit window OK. When I click the add a Bloc plus symbol, the Blocs show, but scrolling down to see the blocs, starts off very slow and soon becomed unmanagable. A first swipe of the mouse scroll takes about 1s for the first scroll to happen. After that, each scroll takes longer and longer. If I select a Bloc, then everything seems to settle down and the Blocs scroll is OK. I have restarted the Mac and the behaviour is the same.
I’m wondering if Blocs is busy doing something. Blocs 2, 3 & 4 were always OK on same system. On installation I chose not to embed images in document.