ClassGeneratorForModernUI error when generating wrapper class for Companies page : 'No container found for view 'Taxes' in the Screen Schema for screen'

I am trying to generate a wrapper class (using ClassGeneratorForModernUI) for the ‘Companies’ screen (ScreenID = CS101500) for my automated testing, specifically adding support to run my tests in modern UI. When I try to do this, I get the following error in the GetScreensAsync method when calling the ‘response.EnsureSuccessStatusCode()’ line of code : 

"{\"title\":\"No container found for view `Taxes` in the Screen Schema for screen. Probably for the HTML element 'QP-GRID' with the Id 'gridTaxes' provided View Name is not declared in the TypeScript ViewModel.\",\"status\":500,\"traceId\":\"00-a0c78e6ac7d5d2392ff4be275189e8a7-c5d9514ac8bd0709-00\"}"

This is a fresh acumatica instance with no customization projects published. I’m not sure if this is an existing bug or if there is a setting/feature I need to enable.