None of the chain explorers are working up-to-date lately.
Some of my long-time SYNX masternodes stopped paying out for me last week.
If I check my VPS with "Syndicated getinfo" they all reported a different block.

Using info from some other masternode forums worked to sync my SYNX MN.
"A chain split can happen, some wallets get stuck. Reindex your MN"
1st using putty I stopped wallet software & rebooted server:
-
logon to VPS.
Syndicated stop[Enter](if this hangs up or wallet has stopped, close putty - logon again and just continue with next line)
sudo reboot[Enter](Server/Putty goes down NOW!)
wait bit of time for reboot... re-logon.
Syndicated -reindex &[Enter](that "&" is part of command, -reindex(space)&).
The reindex command will also start the wallet and it will begin to rebuild confirmed blocks, takes some time.
You can check the block-count of MN using:
Syndicated getinfo[Enter]
And the count will sync up to current level.
Block number will go up, when sync is done. Launch(Start) your MN again from your desktop wallet.