Does someone know when this happened? On Xbox I played last weekend so it’s ok, on Playstation I could not and my last login on the four servers I play on was 11 days ago 
. Well, bases still stand but all thralls lost. All. I mean all of them.
when i refreshed yesterday it was still on holiday timer
It’s not consistent, I just saw that i lost not all Thralls. On Playstation EU PvE #3181 all Thralls at the outpost I logged out 15.03. decayed, but at the main base they are still present. On #3049 all gone. #8002 (Siptah) all gone. #3011 all gone. My Neighbours base on #3181 is also lifeless. Of course no useful information in the logs other than “you were absent for to long so poof“.
Funcom should really stop to tamper with the timers at all. Or at least implement it in a way that the remaining time shown to you when you log out will elapse before the new shorter period came into effect.
On official, EU, PvE-C it was 480h yesterday, can’t force myself to bother checking it today.
Apparently happened when the servers restarted this morning.
Every server I play on was 480 hours yesterday, all are 240 today.
Last night only one pvec ps server showed 240. The rest were 480 resets
I remember that time, 2/3 years ago, when Funcom went on holiday, and on the way out of the door set the Official Servers decay timers wrong, and many, many of us lost all of our thralls. Then Funcom had to roll back the affected Official Servers. Yeah. Good times. My heart goes out to you, and the time you spent tracking down those thralls.