Hi Octa,
The following steps are confirmed which could solve this issue. For your reference:
Many solution upgrades are failing with error while promote and delete is executing with below error.
You cannot disable Mobile Offline flag for this entity as it is being used in Mobile Offline Profiles.
We have a TSG to resolve when the customer reports this:
You cannot disable Mobile Offline flag for this entity as it is being used in Mobile Offline Profiles.
This script will have the effect of removing the specific solution entities from any mobile offline profiles.
While you need to raise a ticket from Admin Center with your Org Url to notify CSS to help you escalate the issue.
The BE Team Engineer could help you to remove the entities within mobile offline profiles by internal script.
This must mitigate the mentioned issue.
Thanks.
Best Regards
Johnny