auth-dialog box silently fails after entering credentials and MFA code

[Scott Robinson]

Using network-manager-openconnect to connect to a Cisco Anyconnect VPN. The authentication webview displays as expected, loads the correct authentication page (okta in this case) and allows me to enter username and password, then I enter my MFA Authenticator code and submit. The Webview then closes with no visible messages, errors, warnings, or any indication of what might have happened. The VPN remains unconnected, and attempting to connect again once again displays the webview, and the cycle continues.

I was able to find related crash reports in System Reports and attached to this report. A potentially helpful snippet from the crash report is pasted below.

Not sure how to provide more detailed reproduction instructions as this happens AFTER I've entered my company credentials, which obviously I wouldn't be able to share.

Happy to provide additional information if needed.

===================================================================
 GDB Log
===================================================================

warning: Can't open file /SYSV00000000 (deleted) during file-backed mapping note processing

warning: Can't open file /memfd:WebKitSharedMemory (deleted) during file-backed mapping note processing
[New LWP 3930]
[New LWP 3952]
[New LWP 3946]
[New LWP 3951]
[New LWP 3935]
[New LWP 3931]
[New LWP 3932]
[New LWP 3947]
[New LWP 3945]
[New LWP 3948]

warning: Section `.reg-xstate/3930' in core file too small.
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/usr/lib/NetworkManager/nm-openconnect-auth-dialog -u 39f75bb1-7172-4f98-9c2f-c'.
Program terminated with signal SIGSEGV, Segmentation fault.

warning: Section `.reg-xstate/3930' in core file too small.
#0 0x000055dece645570 in ?? ()
[Current thread is 1 (Thread 0x7f9e94b655c0 (LWP 3930))]