Hi - one of my enterprise collaborations was deleted by my host agol organization on March 30, 2020 at like 12:05 a.m. EDT.
I am still at Enterprise release 10.7.1.
The collaboration guest (my portal) sends content to my AGOL host. In this case, Developer Edition web application WABs that I have registered with my portal are sent to my AGOL so that they can appear on my AGOL Org home page and in our Open Data Site.
My other collaborations and workspaces that send portal-hosted feature layers were not affected, only the collaboration containing the apps.
The worst part is, after re-creating new collaboration and collaboration workspaces, the syncs keep failing, whether trying to send the apps by reference (preferred) or as copies (which I don't think works anyway when trying to collaborate apps) If anyone has any insight, that would be great. Kelly Gerrow