This isn't directed at you, but at Behringer. I think a lot of frustration from myself and others is that this board has been out way too long to still be in an early stage of development. And even taking into account the pandemic, there is no excuse for breaking backward compatibility in a firmware update on a professional sound console.
I hope you don't take that personally, that is definitely not your fault, you've been very helpful on this forum and I appreciate all your help!