As shown above, cut-out shapes or strange borders appear on the side of the screen as you adjust the separation and/or convergence settings of the driver. It could be even more pronounced with cut-outs happening around the characters and objects too.
In stereoscopic 3D mode, you may see textures that shouldn’t be there. They may or may not be flashing.
Doubling Objects / Characters
While the image may be rendered in stereoscopic 3D, one eye may have doubled objects or characters.