Mastermind Fight - Invisible Damage Area

#: 2,361,822,547
Bottom right area (and final phase of the fight) turned invisible while in the zone, Catarina chose that spot to teleport to as well (you can see her in the top middle of the first pic). The damaging area did not reappear after exiting/reentering via portal.

In this first picture you can see the debuff icon on the left damaging me.

Second pic just to confirm the bug report number and show Catarina in the bottom right corner again (is she supposed to move after the last teleport?). She stayed there until defeated, which was a little janky given the bug (thanks Eternal Youth :P).