Bug with The Coming Calamity Heroic Armour.

As soon as you insert four support gems into the three Heralds and teleport out of the hideout, the armour disappears.
It only reappears after relogging, but the most recently added support gems are missing.

Currently, the maximum is three support gems. From the fourth one onward, the armour disappears.

If you go from 0 to 4 directly, all support gems vanish.

The armour is extremely bugged.