Someone, I don't remember who, posted a few pages back that the UA drifted when released in orbit. It might be worth checking if this drift goes against the direction one would expect. While the head of the UA may always point to Merope, maybe they tend to drift in the direction of Large Barnacles.I´ll get me an UA and try to release it in orbit close to the each planet in Merope. Maybe it changes it´s behaviour and shows to another point when close enough. I´ll keep you updated...
I don't think this will be the case, but still worth a test, in my opinion.
As I picked up a new UA on the way back from the California Nebula, after losing the last one smearing my Cobra all over some planet, I will give this a go tonight. I might also, for a change, bring the UA along in the SRV for a while, assuming it'll survive the drop test(s).
MB is probably sitting in the office right now, checking logs from the weekend, giggling like a school girl about the many times we missed them by a hundred meters.