Don't think you need a logfile for it (since there's no error printed in it).
When you are balance, and are in moonkin form, and the distance exceeds the set distance for a mount, it tries to mount.
However when in Moonkin form you can't mount anymore (it doesn't automagically shapeshifts you out of moonkin form to be able to mount)
You get a red message saying you can't mount while shapeshifted.
It does a few steps and tries again to mount, does a few more steps etc etc.
Think you should make a check for shapeshift form before mounting (at least for Balance).
I guess ferals should have the same issues.
If you insist on a log, I will see what I can do for you