All user whose v1.2.1 wallet can't sync, do this:

1) Stop your wallet
2) Delete everything in your QDP datadir except wallet.dat / qdp.conf /masternode.conf
3) Add the nodes below to your qdp.conf
4) Start wallet to sync again.

addnode=101.100.174.138:57265
addnode=104.225.217.12:57265
addnode=104.225.220.19:57265
addnode=172.93.52.247:57265
addnode=[2602:ff16:1::e9e5:cf28]:57265
addnode=175.210.82.166:57265
addnode=103.75.190.224:57265
addnode=95.136.63.227:57265
addnode=172.104.166.176:57265
addnode=193.242.114.23:57265
addnode=139.162.18.114:57265

The block chain height will match gos.cx and poolovich.pro mining pools. However cryptobridge exchange has issues so don't transfer any QDP just yet.