No such luck.
I use MSFS on a computer. So, I was able to delete the Rolling Cache folder and then create a new one. Then, when I set up the Rolling Cache, it worked.
I have no experience of doing so on an Xbox. Can you get to the MSFS files and delete them manually? Rolling Cache, in this case.
They don’t allow you to view any system folders or files on Xbox unfortunately. What they do allow you to do is delete user data but that consists of lots of other things that I don’t want to delete so I think I’m doomed in this case. It’s always been stuck at zero for me so I’ve never had the benefit of rolling cache.