missing co-pilot conversation history after update:

I have the same situation, not only did the desktop app update, IOS Apps updated at the same time, my chats are gone, my biggest project just shows "Limit reached Copilot can chat about the oldest 20 items in your notebook" and if I click on references it shows a list of 'project-source' files that do nothing.  I've logged out of everything uninstalled everything on all platforms, reinstalled ensured its' updated but nothing showing other than a couple of really old chats, this is so disappointing and making me question if I want to start over using copilot to rebuild the working relationship I had with 'my' AI it all seems too much trouble - at least acknowledge there is a problem Microsoft