[Evolution] Evolution Crash

[Anonymous Japhering <japhering gmail com>]

Evolution 3.38.3 (flatpak git7758dc3) 
Flatpak 1.9.2
DISTRIB_ID=LinuxMint
DISTRIB_RELEASE=19.3
DISTRIB_CODENAME=tricia
DISTRIB_DESCRIPTION="Linux Mint 19.3 Tricia"
Linux 5.4.0-54-generic #60~18.04.1-Ubuntu SMP

Going through one of my mail boxes ( sorry, was only paying half attention )
deleting emails that had been read through web interfaces ( Evolution/Flatpak
crashed and wouldn't restart due to hung, unkillable Flatpak processes).

This is the message that appears in the console terminal:

   GLib-Net:ERROR:../tls/base/gtlsconnection-
   base.c:1394:g_tls_connection_base_handshake_thread_verify_certificate:
   assertion failed: (priv->handshake_context)
   Bail out! GLib-Net:ERROR:../tls/base/gtlsconnection-
   base.c:1394:g_tls_connection_base_handshake_thread_verify_certificate:
   assertion failed: (priv->handshake_context)
   
To me this looks like a simple handshake failure, but not a reason for Evolution
to completely crash.  Am I missing something ?