POL96.1
Server and Client(s) are running AoS, both patched to 5.0.2g

If you take a run in the forest, and run into a rock or those small annoying bushes, you use to stop right away(with pol95, patch 4.0.4b), but with 5.0.2g you bounce.
I think what happens is that the client thinks if can go to the tile where the rock is located, but the server will not permit it, resulting in a “bounceâ€

The server doesn't use the mul files for walk checks, only the data
extracted from the mul files by uoconvert.
You should run uoconvert again, at least for the tiles.cfg and for the
map data.
What you describe sounds as if those are currently based on mul files
from an older client.

Xandros

Could be true.

How do uoconvert find the mul files? I it is from the 'UoDataFileRoot=C:\games\Ultima Online 2D' in pol.cfg or what?

Yes, it depends on your setting in pol.cfg.

Xandros

This is a conflict with tiledata.mul specifically. The newer tiledatas let you run through some small rocks and brambles. You're bouncing probably because the client has a newer tiledata than the server converted. So the client is saying yes you can walk there but the server says no you cant.