UiPath - How to change back from Delegate: Body?

I am not aware that I changed (not even saved it differently) anything in the workflow, but the content of all containers changed to "Delegate: Body" (see picture):

The Robot works, nevertheless it is not so confortable because also preview pictures disapear, in Selector is only the window for text and I cannot validate it.

Does anyone have an idea how to turn it back?

Edit: there is result of search for packages:

Solution

This is due to the fact that the designers didn't load. It's most likely a bug. Does it happen even if you close and re-open the project?