The wrapping is not implemented for the FLIP solver yet - we’ll check the emitters in the scene, but make sure you don’t have open geometries or flipped normals.
the problem with the emitters is the ImagePlane because the simulator doesn’t like plane geometries at all. Just hide it аnd all emitters will work properly. I have another suggestion for you - make the maze walls thicker (for example 1 cm) because the grid resolution is too low. And you can try decrease the Steps per frame parameter to 1. Then the simulation would be much faster. Increase them if it’s needed later on.