Yes, «toggle on and off the encrypt button» helps me too! Looks like this bug is connected to e-mail used to create message (I have 4 e-mails for my account and 4 IDs for key — lists of addresses in Thunderbird and Key are equal).
Also, I have pinned ("Use specific OpenPGP key ID:") key for this account to avoid selection of my old key.
I don't have S/MIME certeficate at all, only GnuPG/OpenPGP key. And it works most of times. But sometimes something triggers and it shows this error. Maybe, it depends on Recepient address, it is triggered by FreeBSD mailing lists very often (but not always!). Also, when it is triggered, it prevents to auto-save drafts as I have "Encrypted drafts" option enabled and it complains that it could not encrypt it. Unfortunately, I can not construct 100% reproducable scenario. I have "Use PGP/MIME bt default"...
I don't have S/MIME certeficate at all, only GnuPG/OpenPGP key. And it works with same settings most of times. But sometimes something triggers and it shows this error for every sign try. I have "Use PGP/MIME bt default" and "Prefer Engmail (OpenPGP)" settings selected in account preferences.
I don't have S/MIME certeficate at all, only GnuGP/PGP key. And it works with same settings most of times. But sometimes something triggers and it shows this error for every sign try. I have "Use PGP/MIME bt default" and "Prefer Engmail (OpenPGP)" settings selected in account preferences.
I have Enigmail 2.0.7 and GnuPG 2.2.8 installed, and SOMETIMES Enigmail can not find my private key to sign message. What is puzzling, that it depends on RECEPIENT address. It always happens when I send message to some mailing-list! It shows message: === Sending of message failed You specified that this message should be digitally signed, but application failed to find the signing certificate specified in your Mail & Newsgroup Account Settings, or certificate has expired. === I've read this: https://enigmail.net/index.php/en/faq?view=topic&id=14...
__USE_MINGW_ANSI_STDIO=1 doesn't affect <inttypes.h> if nor <stdio.h> neither <wchar.t> is included.
"Remember last button" with automatic register assign doesn't work for VMGM menus