Hi,
still relatively new here in the forum, thank you for having an Electrum section here.
I'm not sure if I made a mistake or not so I wanted to ask for your opinion. What does it mean exactly when in the lower half of the "send" tab, there's a green checkmark with "sent", but that transaction doesn't show up in the history?
Could you provide a screenshot of the window? Just make sure to censor any private information such as addresses (both yours and the recipient's), transaction amounts, wallet balances, and anything else that should remain confidential.
I wanted to do a transfer and filled out the (thankfully correct) address, amount, and then hit 'pay' - then a popup window opened and I wasn't sure what to select for the fees, moved the sliders around a bit, and wanted to look some stuff up, and then I must have closed that window somehow. Now I can't get it to open again but it just shows it as 'sent'.
I can't remember if I had entered my password when that window was opened, and I can't remember what the slider position was at.
In the worst case, did I successfully initiate that transaction with super low/slow fees, and it'll need a very long time to show up, so I can then raise the fees for it? Because I can't get it to show a transaction ID, and right clicking it won't allow me to raise fees or make any change to it.
If those are really all the steps you did, then your transaction didn't go through. After you have filled in all the information and selected the fee for the transaction, there should always be a final window where you have the option to double check everything before you can click on the final "pay" and then "broadcast". (that's why I'd like to see a screenshot).
Can I simply make another identical transaction now with high fees, and would that basically supersede the old one - but what would then happen if the old one would get processed later?
If your Electrum wallet is functioning properly, your transaction should appear in the "History" tab, even if it was made with a minimal fee and hasn't been confirmed by the network yet. Have you verified if Electrum is connected to the network? Look for a green circle in the lower right corner of the window. If the transaction doesn't appear in the history list and your total balance still reflects the full amount you had previously, it's highly likely that you didn't broadcast the transaction. In such a case, feel free to create a new transaction without any issues.