Hello! Thanks for the report. I believe I should have this fixed in an upcoming update I've been planning for this shader - if you don't mind waiting a week or so, I hope to have it released by then. This is an issue I've seen when using the ANGLE2 renderer instead of GL2; usually systems default to GL2 but some phones may not. I'll put out a devlog once the update is out, and then please let me know if it fixes your problem!