I have seen a message to Kucoin on twitter, so looks like you are not the only one. Maybe they have to fix the stuck blocks.
!!! ATTENTION !!!
Recent phase change has caused some Masternodes to get stuck on block 151199. Please check your Masternode status and follow the instructions how to fix here:
https://[Suspicious link removed]/H49ZPd
Thank you for your support!
Thanks for this update dev. I have contact the node vps support to do this steps. Now i waiting from a reply from their side. I not get any MN payout today.
I have also a problem with a XLR deposit on Kucoin.