Hi im using a fast blur screen effect on mobile.
(Unity 2019.4 lts)
Its working quite well and i only activate it on stronger devices.
Im running into an bug where strange effects pop up on Canvas Overlay images/textures, especially when i tap out and in of the app.(missing parts, wrong textures, moving, printing, just broken etc)
It probably has todo with the depth texture which wont get cleared. But it only affects canvas overlay elements - a straight copy with canvas camera does fix it.
Its not happening on the galaxy s8, but on nearly ever other device.
Also enabling masking in the shader does fix this problem.
Is there any trick so i can keep the Canvas Overlay without getting artifacts?