Could it be that it is the problem described in the release notes here: https://docs.mendix.com/releasenotes/studio-pro/8.5#850
There is an issue with deployment when you use the new layout grid for web or native pages. This occurs only when using the combination of Mendix Studio Pro 8.5.0 and Atlas UI Resources 2.4.0 (to check your Atlas UI version, consult the Atlas UI Resources module in your app in Studio Pro). This will be fixed in Mendix Studio Pro 8.6.0.
It is a known issue that will be solved in Mx8.6.
I’m using Mendix Studio Pro 8.7.0 and Atlas UI 2.5.3, but the error “Please update Atlas UI to version 2.4 or higher to user Layout Grid on Native pages” still occurs. I don’t know what I’m doing wrong.