Problem with Revit 2025 - Show related Wanings

[azizmech]

I tried everything without any result, the errors still exist.. I attached the file 

  

[iainsavage]

This appears to be the same problem as happened with the first release of 2024 in which there are multiple "dummy" systems connected to the same equipment.

https://forums.autodesk.com/t5/revit-mep-forum/revit-mep-2024-error-in-airflow-calculation/td-p/1234...

You can delete these systems in the system browser and then the warning should disappear.

Check for updates to the software since they solved (?) this in 2024 via an update.