Contacted Cryptopia with the Swap for MUE (
http://forum.mymue.com/topic/49/stage-2-swap-old-mue-for-new-mue)
Their response:
MUE was delisted in June by Cryptopia For the Coin swap the wallet is off line and will no longer be compatible with the MUE network,
You will need to contact MUE support team to get your coins swapped, they may do it from a Email with your Balance we can send to your registered Email address,
How can I pursue to swap my 900 MUE?
Hi, you will have to get your coins out of cryptopia to take part in the swap and that relies on their customer support.
Assuming they are still on the quark based wallet you can obtain the old wallet from:
https://github.com/muecoin/MUE-QUARK-DISCONTINUEDYou can add nodes from here to re-sync
https://chainz.cryptoid.info/mue-old/#!network
There is no reason why you should not be allowed to withdraw your old MUE.