I have this problem too sometimes.

I began removing commands that are available in the job priority system from the NPC overlay about a month ago. They were never intended to be used that way, and was largely left there as a fallback. Now I've opted to redirect my attention to the job priority system, hence I'm making these changes now.

Even if a command is still available via right-clicking the NPC overlay, I recommend using the job priority system (send to safehouse and set priority + schedule). That should work better overall. There are some bugs where NPCs can become stuck on a task they can't complete. This will be fixed in the next patch.

The workaround is to send stuck NPCs to your personal group, and then back to the safehouse. That will make them select a new task.