I couldn't figure out where to post this, so I figured I'd just post them here. I was playing against the AI and I noticed two little glitches. They aren't 'debilitating' by any means, but I thought they were worth a mention. 1) After building multiple radars (2-4), clicking on one to see how far out it's range was would light up the whole planet as if it's range WAS the whole planet. (prior to building, it would show correct range as I was hovering over the planet before finalizing where to place the radar) However, it wasn't picking up any enemy units. 2) This one may have just been a random glitch, but it certainly explains why my radars hadn't picked anything up: it seems that the game started the AI on top of a hill/mountain on my planet. So it couldn't move to build anything. I wish I had pictures to show the two more clearly...but sadly I hadn't thought of that until just now. x) haha
If it's not picking up enemy units, there's three possibilities. there's no units. not enough power. bug. With the recent updates, radar only works if you have enough power. Were you in the negatives for power?