>> My problem is: When I update things within the course and don't see them updated after committing. I change issues on my adm profile, and I don't see them updated after doing save.
Just to make sure... Most probably this is not the cause of the problem, but nevertheless, are you convinced that it is actually in Moodle but not due to local issues such as browser cache, etc.? Did you try working with Moodle site in incognito mode of your browser to see the behaviour?