After merging the PR I do not see any button.

I tried opening the PVP UI and then reloading but still no button.

Maybe a merge with recent changes was the cause?

@derfloh205 Indeed, we should call PvPAssistant_ArenaQuickJoinMacroButton:Active() for it to be shown, the reason is if we gonna have an option to enable it then it shouldn't load by default only when it's necessary.