Have you tried the 2nd part of my advice -
“One other thing I have noticed is as you go into new screens, modules, etc… the page is cached. I have to periodically run the permissions again on everything to make sure I don’t get any “undefined” errors. It’s a pain, but necessary for SuiteCRM to function correctly. Anytime you run quick repair and rebuild or make any changes, you need to run the permissions again and even clear your browser cache to make sure everything is running properly. Thanks!”