Please help. BTC has left Armory wallet and shows as gray, but says “Not in the blockchain yet”

I sent 1.5BTC in the usual way from my Armory wallet, but the transaction shows in gray as if it is still pending. When I click more details it says “Not in the blockchain yet”. If I search for the transaction on blockchain.info, there is no transaction recorded against the wallet ID I was (…)
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