They didn't follow the fork?
What pools are on the right chain?
pool.ombre.io is on the right chain. The new binaries also have updated checkpoints to counter the current split.
Regarding that current blockchain split. We have a block time window of 60 seconds and it makes it easier for these splits to happen. We have seen splits that exceed 100 and this is unacceptable since they really should not exceed the amount of confirmations needed for transactions and miner rewards. We therefore will now focus on changing Ombre to prevent splits like we have seen this weekend. This will be the high priority focus for us devs in the next week.