Can't read forwarded email

Hi,
I have an issue reading forwarded encrypted email.
Explaination:

A send and encrypted email to B (using B key)
B opens the email, decrypts it with the Outlook plugin and can read it
B forwards the email to C
C can’t read the email

So I clicked on “decrypt permanently” in order to forward it decrypted, but the body of the permanently decrypted email is completely blank.

Can you assist, please?

Hello,
issue sounds like this one:
https://forum.gnupg.org/t/permanently-decrypt-fehlerhaft-gpgol/3473
Andre has been informed, pls add informations about your system, mailclient, versions and so on .
Tnals in advance,
regards Chris

Actually there are 2 issues:

  1. “C” can’t read the email
  2. permanently decrypted email are blank

Windows 10 PRO
Outlook 2013
GPG4WIN 3.1.11