I got quite pissed off with Ledger when data was leaked, deleted the app and started to use electrum.
The main reason why I used it again is because with Ledger Live I can log in without connecting the USB, I can see if a payment has arrived, for example. I have the Ledger Nano safely tucked away, and I only pull it out if I have to make a transaction or sign a message. And I hadn't even thought about the firmware update, so I'll keep LL installed.
Did you update anything else last time you used it? Did you try enabling any new features (particularly experimental ones) via the settings? Have you moved or deleted any files or folders from the Ledger Live directory?
No to the three questions.
I'd agree with Charles-Tim though. If you are only using bitcoin, then just use Ledger Live to update firmware and use a better wallet such as Electrum to actually interact with your private keys and coins. In addition to solving this issue you can access to many more features, such as individual address balances and coin control.
Here I agree only in a small part, because it is true that with Electrum, you can see the different directions and balances, but with Ledger Live you can use coin control, I always do it lately, and there is a trick to see what you have in the directions, which is also using coin control, but it shows you with the different inputs.
I figured it was just a bug
Yes, that must have been it.