Steps to reproduce:

• In Administration -> Enumerations -> Activities, mark some activities as not active.
• You can have however these activities activated in certain projects. So it is possible that someone will log time using by default non-active activities.
• Go to Projects -> Overall spent time.
• Add Activity filter. Note that it will let you select only the by-default-active activities. <- Problem
• All activities should be shown in the filter. <- Expected behavior
• Even if you pick, by the Project filter, a particular project, it will not let you select activities that are particularly activated for this project.
• However, if you go to time report from a particular project, the activities filter will be customized correctly as per project settings.

I suspect that these (different) issues have the same root cause:

• #19656 Activities do not correspont to project when adding time from my page.
• #19657 Can't move one level up the last activity item.