/follow issues in wotlk

[Ken]

I noticed this new problem with WotLK as well. Very annoying when it happens, but at least it isn't happening everywhere.

I only seemed to have trouble moving in and out of the misty area in Borean, everywhere else has been just dandy :)

Phased content ;)
I have the same problem in that region.
If you watch it more closely, you will actually see your alts diappear for a moment when you all enter the 'instance' simultaneously (broadcast the forward movement key).

[Skuggomann]

The new phasing sistem can cause this to, like that mystic fog shit in boren tundra.

[Hat]

I've never been able to fly on epic mounts without it breaking.

[Terraelf]

I've mostly had this issue in Storm Peaks, but then I haven't spent much time in Icecrown yet. Regardless of location, I often lose alts w/ epic flying mounts that are following a toon that has a normal flying mount. Although the normal flying mount people keep up. I've taken to reducing everyone to the normal flying mount instead until I can manage to put together funds to get everyone up to epic flying.