[FIX] prevent call to syncMask if element has been removed from entity since being added to prerender list
[FIX] prevent call to syncMask if element has been removed from entity since being added to prerender list

aidinabedi/playcanvas-engine,MicroWorldwide/PlayCanvas,sereepap2029/playcanvas,playcanvas/engine,playcanvas/engine,MicroWorldwide/PlayCanvas,sereepap2029/playcanvas,aidinabedi/playcanvas-engine,sereepap2029/playcanvas