Property glide.ui.m.allow_classic_mobile_app should be in synced during upgrade when customer has updated classic app Oauth manuallyDescriptionDefault value for system Property glide.ui.m.allow_classic_mobile_app is set to FALSE post upgrade to Paris instance.Steps to Reproduce 1. Login an Orlando instance.2. Create few entries in sys_mobile_devices with appId com.servicenow.servicenow and com.servicenow.servicenow-internal.3. Go to Application OAuth - toggle classic app Oauth active flag to FALSE and then again to TRUE (save it).4. Upgrade the instance to Paris. Note that Classic App OAuth is active=true but property glide.ui.m.allow_classic_mobile_app is still false.WorkaroundThis problem is under review and targeted to be fixed in a future release. To receive notifications when more information becomes available, subscribe to this Known Error article by clicking the Subscribe button at the top right of this form.Related Problem: PRB1454053