gjots2 author here. Sorry you've had this strife. I only saw this bug trail today and
that was by accident!
Here's a workaround:
GPG_AGENT_INFO="" gjots2 your-file.gpg
I'll try to get a fix into the next release.
What gpg agent are you using?
If you can copy me at "bob dot hepple at gmail dot com" there's a better
chance I'll see it.