To clarify - the two images above are from the same app. First image is 26.2 where the toolbar buttons are tinted based on the background. Second image is 26.4 where the toolbar buttons are tinted based on the appearance mode (light/dark - matching the sheet)

We had some similar issues with our enterprise builds. The following solved it for us: Use Configurator to remove the enterprise profiles Delete the app Reboot the device Reinstall the app and profile

We had some similar issues with our enterprise builds. The following solved it for us: Use Configurator to remove the enterprise profiles Delete the app Reboot the device Reinstall the app and profile