Hello, Since the 23.4.1 update, there seems to be a weird issue I never encountered before : I tried to open one of my large files ( 27992 x 19169 pixels in black and white, 900 dpi, 513,89 Mo) and it opens but the wait cursor keeps spinning on top of the image for a minute or so after it opened. You can't draw or do anything on the image during that time. Actually, if you draw a line, nothing happens and then the line appears when the waiting wheel stops spinning, as if the line was stored in the history, waiting for the wheel to stop. I also have the 21.0.3 version of photoshop and I don't witness that behaviour there. Please fix this bug with the next update. Thank you.