Hi, first just like to say what a great mod this is, being playing TW since Shogun and all the mods in between and this is up there with the best.
Anyway I am playing 2.1 as Byzantium and currently have six crusader armies on their way to Jerusalem parked next to Constantinople because they can't (or won't) cross the land bridges into Asia minor. At the start of each AI turn the generals seem to make a move toward the land bridge but then just stop. There are no ships or forts or anything blocking the way. Also the crusader armies do not desert (some have been there for 10 years now and are eating me out of house and home) so the AI must think it has made a full move toward Jerusalem.
My armies can cross the land bridges and AI merchants and diplomats have no problem. I know AI armies can cross others cause I just saw France invade england across the channel (France is huge now along with the HRE, the AI expands much more aggressively in 2.1. It also makes a lot more merchants which is great fun).
Anyroad, all help would be much appreciated, I was so looking forward to seeing the crusaders die horribly in the desert.