I first installed the beta in a separate folder.
Unfortunately Canyon also wanted an update, so now I have boths in different folders.
I think the only thing we can do is to backup our own tracks/maps, deinstall everything,
and only install the new beta, do all necessary updates, and copy back our maps.
Solo mode seems to be really bugged after the 2.0 update. For some players, solo doesn't even work, for others no official times can be submitted anymore, for others the rankings don't load anymore..quite a pity, I hope it gets fixed soon