Unstable Nether Portals suddenly stopped working

Building is active.

Plenty of Disruptoer dealies in bag.

Did 2 or 3 on my latest sortie of Broken Shore and all of the sudden the 4th acts as if the building just went inactive. Tried reloading, tried disabling addons, relogging; tried talking to the building dude that gives the building buff. Nothing seems to get it back to normal functionality.