Which slider has a problem in which version of Photoshop? I believe your question need more specifics...
Old version of Photoshop cans co-exist will newer version pf Photoshop. Do not uninstall all old versions of Photoshop. You never know what Adobe will brake next in the current version. You should always have more than one version of Photoshop installed. All new versions of Photoshop historically have new problems as well as old problems Adobe does not care to fix,
JJMack