Logitech G400 mouse, scrolling issues

[Cathulhu]

So, it seems my so far reliable mouse has developed an issue. Scrolling has become rather unreliable and erratic at best. The scroll wheel click in itself still works fine.
Does anyone know if i can fix that without having to disassemble it?
Already tried canned air.
I'm not very keen on the idea to remove the glued on mouse feet to get access to the screws.

[Zireth]

Try another mouse first and see if it's the computer not picking up on the mouse.

Also the scroll wheel could have become dislocated and no longer scrolls.