I was sending some XMR using XMR.to XMR.to gave me the address to send to in my monero wallet. The monero wallet went white and started thinking. It took along time. Then I'm not real clear on what exactly it said but there was a message about the transaction not going through and I hit the button on the right to send it again and it went through.
Did I just encounter a malicious node? Does this attack I've been told about only effect one transaction?