Hi . Here are some more details.
The texture I extracted my sprites from is 256x256.
Taking your advice I deleted my sprites and flipbook, and re-extracted all sprites at 32x32. Also, of course, I then made a new walking flipbook. The issue still occurs.
I also tried different materials and meshes on the BP instead, and the same issue occurs.
Today I discovered the following error when debugging the game live on my Android: E/libEGL: called unimplemented OpenGL ES API
So, I’m starting to think it’s an OpenGL ES issue since it only happens on mobile. And all 3 iPhones and Android I tested.
Any idea how to resolve this error?.. E/libEGL: called unimplemented OpenGL ES API