Hi,
i will back up my WTF and AddOns folder later and just install DugiAddon, that should also clear out my macros.
just to note, i have only seen the issue in the barrens and stonetalon so far. i will be heading to Ashenvale later so i will say if it occurs there.
my human and night elf and their respective zones have not experienced the issue yet, but they are only level 10.