My Bitcoin Cash is stuck unconfirmed when sending to Bittrex from Electron Cash. Please help!
I have same question: one and a half day earlier i send BCC to Bittrex, but till now the TX still unconfirmed. 
Also can't find TX by ID in http://blockdozer.com/ и blockchair.com, there are no any records. 

UPD: Hey! I solved my case. 
1. Use Windows runs on virtual machine crate new wallet, input seed, switch server to electroncash.bitcoinplug.com. A lot of servers doesn't work correctly and transaction cant send (error: The transaction was rejected by network rules.
16: mandatory-script-verity-flag-failed (Signature must use SIGHASH_FORKID)) or still unconfirmed for uncountable time. 
Before i find an answer i have a lot wallets, and delete ElectronCash folder on c: roaming folder. And one more thing, looks like it need to disable 2FA.

Good Luck!