Sywindt
For clarification: The problem has nothing to do with a "changing to Unix". All shards have been running on Linux servers since release and that hasn't changed. The problem is that the so-called server tick (that determines time on Atys) has passed a certain value (max signed int), meaning that, in some cases, the time value becomes negative. There are luckily only a few places in the code where this happens (most places use unsigned int) and most of those have been fixed by the client side patchlet.
Leanon was the first to rollover because that server's date was the highest. Aniro and Arispotle are, indeed, due in a few days.
I know that the devs are aware of the issue, but unfortunately I don't have any more information than that at this time.
I suppose a servertick should be an unsigned int, not signed.
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GilgameeshLegion of Atys