Mechanic Tank Mode (lvl31 and lvl32) gets locked with Combat Orders buff.

Whenever Mechanics get Combat Orders from a Paladin in the party, when they enter the Tank Mode (4th job Mechanic), they can't get out anymore to go back to normal Mech Mode (1st/2nd/3rd job Mechanic).

The only way to unlock Tank Mode is to right click Combat Orders buff in the right top of the screen to cancel the buff.

I'm not sure if this -only- happens when Tank Mode gets boosted above lvl30 (in my case 30+2= lvl32), but most likely this is the cause.

 Images of problem

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Yeah, I've experienced this as well. It makes noise as if you DID get out of tank mode, but doesn't actually let you out of it. You can't use the drill nor hammer. And sometimes trying to change out of tank mode while CO is active.... it even locks up your tank mode basic attack too. Using rocket jump will still transform you to prototype mode then back to tank mode... oddly enough.