Anyone else catch that triangular craft over Lake Michigan last Tuesday night?

Didn't see it myself but I've been following these Lake Michigan sightings for a while now. A few questions if you don't mind - did the triangle hold a fixed altitude throughout, or was there any vertical drift? And the lights, were they steady or did you notice any pulsing pattern? I ask because there's been a cluster of reports from that area going back about three years and the descriptions vary quite a bit. Some witnesses describe rigid formation lighting consistent with a solid craft, others describe something that almost seems to reconfigure. Trying to work out whether we're looking at one phenomenon or several. Also what time exactly, and were you north or south shore?