It's a pretty simple hook so shouldn't really be causing any issues.
It looks like Matt may have since ruled it out as a problem? Let me know if there's anything I need to do on my end?
The other apps with group permissions, who are the modders for them? And will see about testing with them too.
I'm still working on a different way to load group permissions as this will likely be an issue with other apps.
I'm sorry for the delay, the Movies app itself appears to be the main source of conflict, so you might want to speak with that modder as well. I'm still looking at a solution on my end but I can't support other peoples apps as well.
My mistake, there isn't an ajax part. But I'll confirm this as it would be a good idea to add ajax support in the future instead of reloading the page.
Yes I will eventually add this but it will still be medium term. IPB 4.5 and 4.6 required more effort then I expected while I was traveling at the same time.