When I try and open an image in Photoshop 2021 (ver 22.4.2) nothing happens. Occasionally (but not always) I can open an image as a smart object from Lightroom but if I make any edits the image will not save. This has only started happening with the latest update. After looking at earlier instances of a similar problem I reset my preferences and relaunched Photoshop, which didn't solve the problem. I have also made sure I have the latest video driver. photoshop is effectively now useless. Any help would be appreciated.