Same for me the 3 times we killed her, but it was harder than the normal one to take down though, she was hitting for 650ish and had a fair amount of hp
My cleric was the first on Bristlebane to nab this lil shield, but the mob she took it off of was NOT the Fabled Neh'Ashiir, but the regular one. In the 5 or 6 times we farmed this shield for our alts and friends, there was NEVER a fabled Neh to pop.
when we killed the Neh'Ashiir last night his name was "Neh'Ashiir the Fabled" lots of times the only way to tell he was "fabled" was to Con him to get his entire name in your chat box.