Zoom Trackpad with Option key not working

Hi - I’ve tried searching but haven’t seen a solution for this - I can’t zoom anymore using the trackpad and option key, it stopped working over a month ago and I haven’t been able to figure out how to get it back - I’ve updated to the latest version of Rhino 7 mac and still not happening… can anyone give advice on this?

I’m running on mac OS 12.2