You are right - with Tin Pot it works correct.I checked with prefabs which you made (from download page). AdvancedPlayer and Camera&Controller works wrong. This means that problem on UFPS integration side.
You are right, I am forget to do that. But it`s not helped much.Now it some time can be picked, but it fires up like crazy and all time shaking =)
https://youtu.be/8XfUQbMVnAo
Thank you for a quick answer. Seems just commenting out of line 162 is not helped.I made a small proof video for you =)
https://youtu.be/Zn0hKWXVwqw
as you can see I can pick up box only when camera is looking straight forward and mouse is unlocked.