Hello!
I managed to solve it!
I had changed the Caché manager to Redis (In the Joomla global configuration) and that made (For some reason) that it was not possible to save the changes in the project scores, so I returned it to "File" and everything seems to be fine again.
Now I have a question.
My hosting provider upgraded php from 7.3 to 7.4.
I notice that in the student panel the course progress bar does not match in some cases with the lessons viewed, what can I do to correct that issue?