Its probably because those transactions of yours are not yet fully confirmed. What you can do know is to monitor and wait for it to be fully verified.
With 80+ confirmations the transaction is considered irreversible so the coins are fully yours.
So why are you suggesting him to wait if he already said that all his transactions already has 80+ confirmations? 80 confirmations is extremely more than enought.
OP, first off all. Please
MAKE SURE that you have a backup for your wallet. If you don't do, that's the time you want to do that. If you can't rescan the blockchain and Exodus is showing the wrong information about your addresses and transactions, delete Exodus[1], reinstall it again and restore your wallet from the backup you made earlier.
[1]
http://support.exodus.io/article/80-how-do-i-delete-my-wallet-and-start-over