Status == RedLockStatus.Expired but InstanceSummary = Acquired: 3, Conflicted: 0, Error: 0

[destructorvad]

Hello
I have 3 redis servers.
Sometimes I have situation wlile acquiring lock:
Status == RedLockStatus.Expired, but InstanceSummary = Acquired: 3, Conflicted: 0, Error: 0

https://github.com/samcook/RedLock.net/blob/master/RedLockNet.Abstractions/RedLockStatus.cs
here I see:
Expired = The lock expiry time passed before lock acquisition could be completed.

How can it be ?
all servers respond with Acquired result - but total status is Expired
Thanks