Quote from: MJS_gold on August 23, 2017, 01:05:21 AM

I sent my last transaction with a low fee and the "replace by fee" option enabled, just to give it a try. Now when I right click the unconfirmed tx in the History tab and select "Increase fee", it gives me the option to set a higher fee. But when I try to sign the new transaction, I get an error message that looks like this: http://imgur.com/a/O1vyD

Should this feature work when using Electrum with a hardware wallet? I did not click the "Final" checkbox after setting the higher fee; is that required? I'd welcome any help!

EDIT: Might the error have anything to do with the original transaction only having one output?

Checking the "Final" checkbox will make the transaction non-replaceable. Having only one output shouldn't be a problem.

Try signing the transaction using the command line or another wallet. For the command line check how at http://docs.electrum.org/en/latest/coldstorage_cmdline.html