Labels not refreshed

I saved my project with labels defined. If I load the project again, labels aren't visible :

but if I open layers/properties

and click cancel

Labels appear.

I can't click apply because shaded and ok has no effect (inversion ?)

By the way, you can notice that CCAS has wrong category display (green square) even if it has a 2 like the other

I noticed that category is diplayed correctly after selecting categories in the left pane and click ok.

Table editor, modify labeled field, save and exit : label is not refreshed on the map.

When a project with labels and recalled, labels are not displayed

Could be this one is also fixed in the last version - to be verified