@Gunter Severloh Glad to see that you resolved your own issue and provided a solution! May add this as an option to my post. Seeing that you had to downgrade, you probably have a mod(s) that doesn't work with the latest version of the game.
@Gunter Severloh Did you install Asi Loader (version.dll) by LMS? If not, it is required to load mods in the first place. You can find it here: https://www.rdr2mods.com/downloads/rdr2/tools/9-rdr-2-asi-loader/
@ltcolblackfire If you have outfit changer or Lenny's Simple Trainer installed, you will need to reinstall version.dll as you accidentally overwritten the asi loader.