Description: It is reported by the user that, the virtual keyboard does not appear when trying to add recipients to a secure email. It is randomly happening based on the user's description.
In my investigation, the virtual keyboard won't appear in case such options is disabled. However, its not the case for the reporting user:
The user has politely declined further troubleshooting, so a GitHub issue should be created for internal review.
cc: @sosnovsky - Just mentioning Roma, in case there's a need for reviewing the referenced email below.
Reference: https://mail.google.com/mail/u/human@flowcrypt.com/#inbox/FMfcgzQXJsxmSwwLQTtTSWVzqNxxTLKg