~snip~
If you're still unsure, then you can delete the TX and see what happens. Most likely there won't be anything happening because that TX was confirmed already (according to your info).
Unfortunately I did not do that because the tx was important to me. I paid it for a service to buy.
You can delete it without any issues, once you get to connect to a server and successfully synchronized, the (
confirmed) transaction will instantly pop-in to the history.
Just manually select server if you need to sync right away.
That's basically the same when you restore a SEED on a newly installed Electrum.
The history is empty at start but after synchronization, all will be automatically restored....