Does not load the Screen 1 blocks

Hello, when I open a project, it does not load the Screen 1 blocks, does anyone have the same problem? Thanks

Do you get an error The blocks for screen … did not load properly?

That’s right, but it only happens to me in some projects, not in all

If you wish post here a project or pm me to see if it is related to left open another screen block without value or see how to fix it