• New to Armory and was unknowingly using an old version 0.96.0-beta with bitcoin core 14.1
• It worked enough to receive bitcoin and since I didnt use it very often I didnt check for newer versions
• I tried to send bitcoin to a retailer to complete a transaction on 12/10
• The transaction fee it came up with was very low and the transaction remains unconfirmed, the retailer has canceled the order
• I was able to remove unconfirmed transactions from armory and that transaction no longer appears in my wallet
• The transaction does still appear unconfirmed on blockchain.info
• I've since upgraded to bitcoin core 15.1 and armory 0.96.3.99-beta
• Despite my wallet showing full funds I get a 258: txn-mempool-conflict error when trying to send bitcoin
• I assume this is due to my unconfirmed transaction

So all that said, is there anything I can do? Will this eventually disappear after 72 hours allowing me to send bitcoin?