New Errors appearing from nowhere?

Hello,

I am surprised to find out errors on classes that were generated automatically with “generate newpoint” on my model.
I don’t understand how a perfectly fine model/viewpoint got new errors from nowhere, a month later after reloading the project.
First one:

Others:

Its as if Capella Studio does not reconize anymore the variables it has made itself? I tried loading a new Capella Studio, same errors.