From IRO Wiki:
Special note for Vanilmirth owners: Due to Instruction Change being bugged, (this has not been fixed on any official RO server) the STR bonus from Instruction Change will be lost when one teleports/changes maps/ or relogs.
I
just got this skill and exited the map without checking anything, and then found that while looking up other stuff about homunculi. Is it fixed on our server?
Also, do homunculi have skill trees that actually matter like regular job classes? As in, if we don't put enough skill points into X, we can't get Z later on? If so, is there a way to reset that later on like the skill resetter?