I'm having almost the same issue, I'm using a custom mouse theme and a custom size and the mouse cursor resets to default theme and size when: - hovering over desktop - hovering over a window top bar - hovering over "core" applications like nautilus or settings
As OP says, also in my case only the "pointer" state of the cursor is affected by this transformation, any other state is rendered properly anywhere. $ apt list --installed | grep ^gnome-shell gnome-shell/bionic-updates,now 3.28.3-0ubuntu0.18.04.2 amd64 [installed] gnome-shell-common/bionic-updates,bionic-updates,now 3.28.3-0ubuntu0.18.04.2 all [installed,automatic] gnome-shell-extension-appindicator/bionic,bionic,now 18.04.1 all [installed,automatic] gnome-shell-extension-ubuntu-dock/bionic-updates,bionic-updates,now 0.9.1ubuntu18.04.1 all [installed,automatic] $ uname -r 4.15.0-32-generic -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1790010 Title: Default cursor size over dock after login Status in gnome-shell package in Ubuntu: Confirmed Status in mutter package in Ubuntu: Confirmed Bug description: Dock, dash and top bar do not respect cursor size setting from "Settings" (gnome-control-center) straight after login. Occurring in Ubuntu 18.04.1, on two machines. Expected behaviour: cursor size set to medium (32px) or large (48px?) should remain consistent between windows, desktop and dock/dash/top bar. Observed behaviour: cursor shrinks to default (24px) when hovering over dock/dash/top bar. If the cursor state changes (e.g. to loading spin wheel) the cursor fixes itself. Not sure whether it is a bug in GNOME or the shell extension. Sizes set using "gsettings set org.gnome.desktop.interface cursor-size 32" and "gsettings set com.ubuntu.user-interface.desktop cursor-size 32" exhibit the same behaviour. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: gnome-shell-extension-ubuntu-dock 0.9.1ubuntu18.04.1 ProcVersionSignature: Ubuntu 4.15.0-33.36-generic 4.15.18 Uname: Linux 4.15.0-33-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Thu Aug 30 23:45:14 2018 InstallationDate: Installed on 2018-08-24 (5 days ago) InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) PackageArchitecture: all SourcePackage: gnome-shell-extension-ubuntu-dock UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1790010/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

