weird glitch with 2d sprite fade with leantween

Hi there, can someone point me to what could cause this glitch : Dropbox - Error - Simplify your life

All i am doig is using leantween to fade in/out some sprite…first time i see thisd glitch and it occurs also on the final build

Thanks for any help

Found a solution, it seems Canvas doesn’t like to have too many object tweening at the same time, so i put some of them out of canvas (as simple sprite) and now everything is ok