Hello @MM
Thank you for reaching out on the community and telling us about your issue. Going off of the article Sherlock linked above I would recommend deleting the payments that are still stuck inside of the register. After that I would add the transaction again manually and reconcile it manually so you still have an accurate register. Online payments are a bit trickier since the directions in this case got lost somewhere in between sending and receiving so it's in a stalled state.
If something else pops up while trying to redo the transactions let us know!
Thanks,
Quicken Francisco