So, when I make a selection with one of the selection tools, the selection snaps to a shape other than what I intended. Usually the shape takes on the form of a triangle with one side of the triangle resembling the intended selection. I tried resetting the tool bar, reloading PS, making changes to the Graphics Processor setting, but nothing helps. In the photo below, I was using the Lasso Tool. I'm stumped!
yes! When I release the mouse. I just updated (two minutes ago) PS on my laptop (a different machine) and I get the same problem!!! It must be a photoshop udate issue. I'm going to try to restore yo an earlier version and see what happens.
Post note: I was able to restore my laptop to an earlier version via Restore Point. This also restored my PS to an earlier version that does not have selection tool issues. Unfortunately, I wasn’t able to restore my Desktop to an earlier version without the PS selection tool issue. Is there a way to install an earlier version of CC Photoshop?
@rongaut1 : i installed earlier version 20.0 for my desktop via Creative cloud and it was OK : 
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