Mouse pointer misaligned hovering over Effects list (R20)

Upgrading to Studio 20 from Studio 20 Beta 3 on my Apple M4, I find the mouse cursor is not aligning properly when hovering over the Effects side bar list. The cursor only highlights/activates a button when it's pointing at the extreme top edge of the button; when pointing at the centre of a button, the button underneath is highlighted and activated. Particularly irritating when trying to preview an effect!