Hey I know this issue is old and considered “fixed”, but I’m experiencing the exact same thing now on the 1.3 steam beta branch. I also tested it with the current stable version.
My issue behaves exactly as shown in the GIF, so I figured it might be related. I can’t double click on anything, it only ever registers as two “single clicks”. I can’t double click to open layer properties, I can’t double click folders in the “open” dialog like mentioned in the other topic, I can’t double-click with the selection tool to automatically snap the cursor.
Anything related to double-clicking is not working. I’m not sure when this issue started for me.