Add Platform disabled

Delphi 10.3.1 Pro Windows 10

Only platform available in either VCL or Fire Monkey is Win32

Right Click on Platform node only brings up disabled "Add Platform" menu. This happens on any new project.

From .dproj

 </DeployClass>
                <ProjectRoot Platform="iOSDevice64" Name="$(PROJECTNAME).app"/>
                <ProjectRoot Platform="Win64" Name="$(PROJECTNAME)"/>
                <ProjectRoot Platform="iOSDevice32" Name="$(PROJECTNAME).app"/>
                <ProjectRoot Platform="Linux64" Name="$(PROJECTNAME)"/>
                <ProjectRoot Platform="Win32" Name="$(PROJECTNAME)"/>
                <ProjectRoot Platform="OSX32" Name="$(PROJECTNAME).app"/>
                <ProjectRoot Platform="Android" Name="$(PROJECTNAME)"/>
                <ProjectRoot Platform="OSX64" Name="$(PROJECTNAME).app"/>
                <ProjectRoot Platform="iOSSimulator" Name="$(PROJECTNAME).app"/>
            </Deployment>
            <Platforms>
                <Platform value="Win32">True</Platform>
            </Platforms>

adding  <Platform value="Win64">True</Platform> doesn't help