Last week or so, a new sim was added on the south side of Xalapa. Its name is Amante Isle. I've noticed that transition between the two sims is problematic. When an avatar crosses the border between the two sims, regardless of whether s/he walks or flies and regardless of speed, s/he starts walking or flying seemingly out of control while the coordinates take dodgy values: for instance, when I go from Xalapa to Amante Isle, the Y coordinate goes from 0 all the way to -50. And when I go from Amante to Xalapa, the Y coordinate exceeds 255 - it can go up to 300. Of course, in a few moments the system gets its act together and the avatar is returned to the border between the two sims.
I had reported this as a bug when I first noticed it, but the situation has not been improved, so I decided to post it here, hoping that someone will identify the problem and solve it.