Completed the top tier Cavia Steel Path bounty, only received 2000 standing. The mission was Big Fish Nex, Exterminate and kill 2 rogue voidrigs. I was not host. I have plenty of Daily standing left to acquire.
Edit: Just did another, and received 0 standing this time.
Second edit: Just did a normal cavia mission, the 5000 standing one, and got 1k. Something is very much bugged with the Cavia.