So, I jumped into a random sector and saw some bots after the latest patch. I could visibly see them and they were not far away. It was a group of artemis collectors, a seipos transport and something else. Anyways, they were about 1.5k from me and both, myself and the bots, were 2-4k away from the nearest roids. I could only "see" a single artemis on my radar, though. Seems like it was a bug of some-sort with the occlusions stuff that hid the others even though they were in plain sight.

It was Sedina A4 I think (hidden roid field)

If you're in the sphere of influence of some asteroids, they occlude your radar. You can't see anyone and anyone can't see you.

Even 1.2km from the nearest mass I couldn't see the bot attacking me on the radar and of course couldn't get a lock on it. It apparently had no trouble targeting me though.

as of release 93, ie tonight.

I was in b8 with two other players. The arrived before me.

Player 1 was occluded by a roid, I think, when I jumped in. He was far away either way, and i didn't know where he was.

Eventually he found me, but I still could not see him. After mentioning this, he flew over to me, and sat right next to me (<100m). And I still could not target him or pick him up on radar. We were not next to roids.

This was also true for the other pilot who was in sector with us at the beginning.

Other player then entered the sector, and could target the player that we could not. At this point, we were away from the roid field.

I never regained radar detection of the player, until we left sector.

One more problem pops up if you have proximity warning on.
A ship leaving the occluded area, or flying at its border, often makes a long sequence of multiple beeps. Just one station guard flying around can make you crazy in no time.

In Dau E-10 1516m from any mass/asteroid. You can see the bot shooting at me and nothing on radar nor in targetless.

http://royptrsn.freeshell.org/images/vo_20091004_1600.png