Creating new material on empty slot adds general material for GPv3 object. Instead GP material should be used. Found this issue while creating #113481 Pull Request: https://projects.blender.org/blender/blender/pulls/113526
Creating new material on empty slot adds general material for GPv3 object. Instead GP material should be used. Found this issue while creating #113481 Pull Request: https://projects.blender.org/blender/blender/pulls/113526