Won't let me upload my overlays

So i got some new png bruise overlay and when i click on upload and got to press open it comes up as if nothing was clicked.This never happened to me before and i also tryed it on my ipad and the same this is happening.

This usually means that the png image is too big. try making the image smaller then try to upload it again.


how small shall i make them

Overlays need to be less than 1MB

thank you it works now