Huge black box appears when trying to move symbol with free transform tool.
I'm trying to work on a video where I i need a puppet rig turned around which I did using the transform tool's "flip horizontally" option. One of the symbols of the rig did not flip properly like the rest and when i tried to use the free transform tool, it put a huge black box around the symbol. Not only that, but it doesn't respond when I try to move it. Also I tried moving the whole rig and it started forming grea bars in the area where I treid to move it and just kind of acting buggy. This has happened before when I once tried to use 2 pupet rigs at the same time. I have a decent computer with more than the minimum requrements but i swear it acts like its too much for the processer to handle. Any ideas how to fix this?

