Nothing to worry about just yet, I would imagine Kucoin just need to resync their wallet. Give it a bit of time, then email the support desk with the info.
SOLARIS DEV - I cannot send you a message as a newbie...
I sent XLR to Kucoin and nothing arrived a few hours later.
Status: 224 confirmations, broadcast through 16 nodes
Date: 27/01/2018 15:50
To: Damian SZrSCFTuirpPasxqXhdSkJuDFQBDwJVA6o
Debit: ....................
Transaction fee: ....................
Net amount: ......................
Transaction ID: 6e3f81efbf430d1e3ad6ac30ce9520e08163f6775c341a3d0da5bb370a21039d
Output index: 0
Status: 45 confirmations, broadcast through 12 nodes
Date: 27/01/2018 18:53
To: Damian SZrSCFTuirpPasxqXhdSkJuDFQBDwJVA6o
Debit: ........................
Transaction fee: .....................
Net amount: ...........................
Transaction ID: 90e4849d627d90a5b26ef1ecc7e494fc3424762a95f7e54fc2f568d83b7372c1
Output index: 0
Still nothing on Kucoin...