Hi. This is some weird issue I had with PS versions for last few years. Usually I worked on CC 2017, but recently I switched to the newest version (and I'm starting to wonder why I did it), and the bug came up. It makes me restart Photoshop much too often. After I play around with shapes I bit, the bug appears and it only gets fixed when I restart PS. You can see the bug in a video HERE. At some point isntead of changing fill color, shape gets scaled. It was like that for a few years, in the meantime I formatted system drive, reinstalled whole OS at least twice. The bug keeps coming back.