The Coming Calamity Disappears

Replicated a bug using The Coming Calamity with level 20 heralds. Socketing in the 5th support gem causes the body armour to disappear entirely when entering a new zone. It comes back after logging in, but with the 5th support gem slots disappearing forever.

Can't repeat a follow-up bug, but one morning I logged in and my socketables inside the body armour disappeared forever. The sockets remained.