Guild Wars 2

My guild today (Swords of Villanousity) claimed the Gilded Hollow, and while we were doing the claiming mission a new build was announced in game.
This disabled the guild functionality (when opening the guild panel there was red text saying so) but we didn’t realise this until finishing the claiming mission.
The mission allowed us to claim and said the hall was claimed, everything looked fine. Then when we relogged, updated to new build, there was no guild hall claimed.

This is a big deal to our members as we’re from diverse time zones and needing to have people on at the same time with the right skills for the mission.

Given that new builds are released all the time, this seems pretty bad. We didn’t know until we’d patched up and some members had gone to bed, and so couldn’t try it again.