Thank you! I am sure this list will help others who are experiencing compatibility issues with plugins.
If you made a backup of your wiki before upgrading (recommended) you can just revert to that. Otherwise I think overwriting with the stable version would work (make a backup just in case). If nothing else you can install the stable version (Greebo) from scratch and then move your pages, media, configuration/users into it.
If it were me though, I'd look at just sticking with Hogfather and going without those problematic plugins until they are updated (if they are ever updated).