SFTP with multiple ProxyJump

[jimklo]

Trying to connect to a server using SFTP. Following this Q&A: #17300

I can connect via sftp on the command line, however when I try to use Cyberduck, I keep getting variations of this error when trying to use a single bastion:

And if I try to connect with 2 bastion servers (which I need to use in a couple of instances) I get the following error:

My .ssh/config is more or less this (I've obfuscated names of some things).

Match originalhost cb-*
        User myuser
	AddKeysToAgent true
	IdentityFile /home/ubuntu/.ssh/id_one
	IdentityFile /home/ubuntu/.ssh/id_two
	IdentityFile /home/ubuntu/.ssh/id_three

Host cb-jumpvm
	Hostname ffff:2222:f4e4::10

Host cb-desktop01
	HostName 10.112.11.30
	ProxyJump cb-jumpvm

Host cb-sync-gw
	HostName 10.112.11.35
	ProxyJump cb-jumpvm

Host cb-speakeasy
	User bouncer
	HostName cb-speakeasy.example.com
	ProxyJump cb-jumpvm,cb-sync-gw

This works in Terminal to SSH and with sftp, rsync, etc., basically anything that actually honors the ~/.ssh/config. Following the guide for cyberduck, the simple "single" bastion should work, but does not. The second I might understand that it doesn't work - however if I'm to believe ProxyJump is supported, then multiple jump servers should work.

What am I missing or is this a bug?