Interesting, no one else has reported this issue. You can't click them with your mouse (there are no mouse controls), you have to use the keyboard '1' '2' and '3'. Were the other controls working? (Including when the controls changed based on rules?).
Viewing post in Rule Overload jam comments
mmm. Well it is very difficult to debug over a comment section without me harassing you with a tonne of specific questions! Which I won't waste your time with! If I get another report of this issue (no one else has reported it), I'll look into this a bit further, but I just can't replicate the problem on my end, sorry.