In the latest version of Photoshop CC 2015 I get multiple Interface bugs which requires me to restart photoshop. THe bugs are offsetet gui and canvas problems.
To be more clear. Interface such as tooltip popups, Like when dragging a layer in the layer stack, the floating layer attached to the mouse can be placed a completely different place on the screen than the mouse cursor. Or when cropping, the pixel amount info is placed somewhere else than the cursor.
At the same time as this bug appear, the canvas for the image Im working on doesnt get larger. Meaning if I make the window larger, there will be a black frame around the image and no matter how large I make the tab/image, the image itself is cropped inside this small area. A very annoying bug that appeared with the latest version, I hope you can fix this soon.
The issue for document window not showing up in the correct position or showing black when resized when a second monitor is attached/removed is fixed in the Photoshop CC 2015.0.1 update which was released today. Details here: http://blogs.adobe.com/crawlspace/201...
I believe it should fix the other issues you are seeing. Let me know.