Multiple canvas

I had a nested canvas health bar over each players head. Worked fine. Then added pause menu with canvas. When it comes up it erased player health bar. I still get outline in scene view but no render.. tried to activate one only as needed but no go.. only one canvas at a time.. anything?? Thanks all

 

should work. Are you using special materials for the health bar? Otherwise: screenshots please.

 

Thanks not handy right now for screenshots.
Noticed though when I switch to both overlay (right now player is world) then no issues.
Not exactly what I had in mind but something.