Is the mech 4th job test broken?

Is the mech 4th job test broken? I've killed the boss behind the 4th job instructor 3 times but it still says I haven't killed the boss for the 4th job test in the quest helper. Is there another boss that uses that room for some quest I activated but never completed? Does it fail if you kill it too fast? (It doesn't take very long to kill.)

Thanks for any help!

Is the mech 4th job test broken? I've killed the boss behind the 4th job instructor 3 times but it still says I haven't killed the boss for the 4th job test in the quest helper. Is there another boss that uses that room for some quest I activated but never completed? Does it fail if you kill it too fast? (It doesn't take very long to kill.)

Thanks for any help!

If you are in a party it can bug up and fail to count the kill for the quest.

ooo, that's interesting. I was probably in a party because I tried right after 2x/3x event. I'll try again without a party. Thank you for your help!

Edit: Mission Successful.

Im sorry this is off topic but you don't already have a 4th job mech in your army of characters?