I'm concerned as well. Did anyone hear anything about IG?
Do you have the use-standard-socket in ~/.gnupg/gpg-agent.conf ? I had the same problem...
I already have the use-standard-socket in the .gpg-agent.conf, but not the --daemon...
I checked the sticky and went trough everything mentioned in https://www.enigmail.net/support/gnupg2_issues.php...