Mouse Keys not working

Review the following Apple Support article to see if anything there helps.

Use your keyboard like a mouse with Mac - Apple Support

What Keyboard are you using with the M4 Mac mini..?

Find the serial number of your Magic Keyboard, Magic Mouse, or Magic Trackpad - Apple Support

Plus updating from 15.1.1 to 15.2 might also fix.

What's new in the updates for macOS Sequoia - Apple Support

I will try… no guarantees that i will solve it, though

see this as well: If your Mac doesn’t respond to key presses - Apple Support (CA)

What brand of mouse do you have and is it wired or wireless?

have you already done mouse 2ndary click setup?

Mouse settings on Mac - Apple Support (CA)

This is if you have a Logitech mouse ( and keyboard)

https://www.reddit.com/r/logitech/comments/1fro35x/macos_sequoia_not_working_properly_with_mouse_and/?rdt=43682

i use a big old trackball from kensington, i find it’s easier on my wrists and hand overall, it’s more expensive at a bit over $99 , but it’s well built, has 4 large customizable buttons, customizable software/application, can be used via bluetooth or USB dongle ( which is included, along with some fresh AA batteries) … just my opinion though… you’d also have to play around with the Accessibility setting( s) under System Preferences..

sorry, jamison213 but it’s a swing and a miss from me

John B

jamison213 wrote: when I get the window to confirm "Use Mouse Keys / Cancel"

Where exacty do you see that?