Issues have arisen for users of the Logitech MX Master 3S mouse designed for Mac, stemming from an expired Apple Developer Certificate. This situation has rendered the companion app inoperable, preventing automatic updates and causing significant inconvenience for many users.
A Reddit user reported experiencing unexpected changes in scroll direction and non-functional extra buttons, which led them to investigate the Logi+ app. After multiple attempts to resolve the issue, including resetting devices and reinstalling the app, they discovered the root cause of the malfunction.
Logitech has acknowledged the problem, calling it an "inexcusable mistake," and has created a support page with detailed instructions for users needing to manually install a patch. The steps include downloading the new installer for either Options+ or G HUB and following specific prompts to restore functionality.