Not sure if it's a bug or if I'm not doing something right, but when I made a queue for what research I wanted, it's not researching it.
Does it not start unless I click a button or something?

Would be nice if there was a "Start Research" button that automatically starts whatever is on top of the queue

I've not seen this happen before (with the exception of a bug in the game that was fixed some versions ago). So the only cause for this that I can imagine is that AR either isn't enabled or you've untoggled one or more science packs needed for the research you've queued.
As for "Start research" button, this can be achieved by simply disabling and enabling AR again.