Yes, use mycrypto instead of MEW. I sent all my Musicoin holdings from my Ledger to DOVE using mycrypto.com instead of MEW and it worked fine. Now, I am just waiting for the December 15 swap to occur!
From a Ledger it might work but I just got this on a keystore file on an offline PC. It seems the only way is to actually import private key which seems risky. Anyway to create an unsigned transaction with MyCrypto which will import the gas+nonce that I later sign offline with MyCrypto? Or is it not possible