Up until yesterday SketchUp Pro 2017 was working wonderfully, now it still works great with the exception of one thing: It is impossible to triple-click or double-click select because it takes about 30 seconds for the selection tool to work and highlight the object. It freezes until then. Absolutely every other function works perfectly, it just takes half a minute to select/deselect anything. A group, a face, a line, anything.
It is driving me crazy... It is not model specific either, it happens in every model I've opened since this started last night. I've updated 2017, I've disabled extensions, I've done all I have read to do to no avail.