Can't move (or see) the mouse cursor during desktop zoom

[Jordy van Heeswijk]

What I expect to happen:
After booting up Ubuntu I'd like to be able to just enable desktop zoom using Alt+Super+8.

What actually happens:
When I enable desktop zoom after logging in to Ubuntu, it doesn't work. Magnifier zooms in to the top-left portion of my desktop. The mouse pointer disappears and I can no longer move my view around. I can still disable zoom, so apparently it didn't crash. After I go to Settings->Accessibility>Zoom, change some settings and enable zoom it works. When I change the settings back to my preferences it still works. After this the magnifier seems to work without further problems.
I'm experiencing this problem with both xorg and Wayland.

Some general information:
- My Magnifier settings:
  - Magnification: 2.00
  - Magnifier position:
    - Screen part: full screen
    - Magnifier cursor pushes contents around
  - I used gsettings to set caret-tracking and focus-tracking to 'none'
  - The setting 'mouse-tracking' is still on 'push´
- Graphics card: NVidia GeForce GTX 970
- Graphics driver: Proprietary nvidia-driver-5.15

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: gnome-shell 42.4-0ubuntu0.22.04.1
ProcVersionSignature: Ubuntu 5.15.0-48.54-generic 5.15.53
Uname: Linux 5.15.0-48-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu82.1
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Tue Sep 27 18:44:56 2022
DisplayManager: gdm3
InstallationDate: Installed on 2022-09-26 (1 days ago)
InstallationMedia: Ubuntu 22.04.1 LTS "Jammy Jellyfish" - Release amd64 (20220809.1)
RelatedPackageVersions: mutter-common 42.2-0ubuntu1
SourcePackage: gnome-shell
UpgradeStatus: No upgrade log present (probably fresh install)

[Daniel van Vugt (vanvugt)]

> I used gsettings to set caret-tracking and focus-tracking to 'none'

Did you perhaps also change mouse-tracking to 'none' by accident? It should be 'push':

  gsettings set org.gnome.desktop.a11y.magnifier mouse-tracking 'push'

[Jordy van Heeswijk (jvanh)]

No I left mouse-tracking alone. That's still 'push´.
Updated the bug description.