Namecoin stalling on slow networks
On download speeds below ~6 Mbit, because of a missing checkpoint, Electrum-NMC will fail to advance the blockchain.
(See Electrum-NMC issue https://github.com/namecoin/electrum-nmc/issues/268 for technical details.)
This is fixed in the latest release. To fix it here, just update the version accordingly.
To upload designs, you'll need to enable LFS and have admin enable hashed storage. More information