I have a peculiar issue with the T4 template. When I click some links on
the main menu, the template seems ok. But on links to any Seblod form, the template
seems to disappear and only the page content is visible. When I switch
to Protostar or Helix Ultimate templates then I don't have this issue. To explain better, I click "Register" on the menu. Instead of the form open within the template, it appears by itself without the template. Just a white page with the form fields and submit button/s. Site logo, menus, modules, everything - gone.