Oh no! Is there not going to be an upgrade to make it work? What is a solution?

I'm devastated. Now I don't trust start10 either.

John

Start 10 is as the name says for Windows 10. No need for no trust.

The problem might be related to the number of items you have docked, my suggestion is to backup the settings and try creating new dock with a small number of programs. I've been using it since I believe Windows 98 and strangely now that I am running Win11 it seems to work better than it ever did.

I think that is way too many and I am not sure if Object Dock was ever meant to be used that way, (even though there is an option to create multiple docks). For what you are doing, Fences would be a better option.
It is said that Object Dock is not compatible with Windows 10/11 and the reason why is because support and updates have ended but a lot of people still use it without any major issues, I use it and it works fine on my Windows 10 computer, I also still use RocketDock from time to time and it was abandoned years ago, I don't experience any issues with RocketDock either.
I use a dock for my most used programs, usually what is on my start menu and maybe a couple extra, I would never consider using it for as many programs that you are, if I wanted to have that many programs organized on my screen, I would use Fences which is also what JanOscar is suggesting you take a look at.