According to Logitech’s support page, the problem was caused by “an expired certificate” required for the apps to run.

An expired certificate has resulted in numerous Logitech peripherals losing full functionality in macOS. Here's how to remedy ...

In SetPoint you need to set the buttons to key presses that you don't use when you're playing. Like N, J, K, L, ;, etc. You can either do this for all applications, or figure out which .exe is running ...

So I finally got round to trying ArsClip, and I like it View image: /infopop/emoticons/icon_smile.gif<P>Just one flaw...I can't see a way to map it to a button on my ...

A certificate issue has broken the Logi Options+ app on macOS, leaving many Logitech mouse and keyboard features unusable ...

For years, I never used the extra buttons on the side of my mouse, and mostly just viewed them as a nuisance. Too often I’d click them by accident and trigger some unwanted action, like navigating ...