An excerpt from my original WXS file showing the Publish elements

broken.wxs

<UI Id="IntegrationFrameworkUI">
            
            ...
            
            <Publish Dialog="BrowseDlg" Control="OK" Event="DoAction" Value="WixUIValidatePath" Order="3">1</Publish>
            <Publish Dialog="BrowseDlg" Control="OK" Event="SpawnDialog" Value="InvalidDirDlg" Order="4"><![CDATA[WIXUI_INSTALLDIR_VALID<>"1"]]></Publish>
            <Publish Dialog="ExitDialog" Control="Finish" Event="EndDialog" Value="Return" Order="999">1</Publish>
            <Publish Dialog="WelcomeDlg" Control="Next" Event="NewDialog" Value="InstallDirDlg">NOT Installed</Publish>
            <Publish Dialog="WelcomeDlg" Control="Next" Event="NewDialog" Value="VerifyReadyDlg">Installed AND PATCH</Publish>
            <Publish Dialog="InstallDirDlg" Control="Back" Event="NewDialog" Value="WelcomeDlg">1</Publish>
            <Publish Dialog="InstallDirDlg" Control="Next" Event="SetTargetPath" Value="[WIXUI_INSTALLDIR]" Order="1">1</Publish>
            <Publish Dialog="InstallDirDlg" Control="Next" Event="DoAction" Value="WixUIValidatePath" Order="2">NOT WIXUI_DONTVALIDATEPATH</Publish>
            <Publish Dialog="InstallDirDlg" Control="Next" Event="SpawnDialog" Value="InvalidDirDlg" Order="3"><![CDATA[NOT WIXUI_DONTVALIDATEPATH AND WIXUI_INSTALLDIR_VALID<>"1"]]></Publish>
            <Publish Dialog="InstallDirDlg" Control="Next" Event="NewDialog" Value="ServiceUserDlg" Order="4">WIXUI_DONTVALIDATEPATH OR WIXUI_INSTALLDIR_VALID="1"</Publish>
            <Publish Dialog="InstallDirDlg" Control="ChangeFolder" Property="_BrowseProperty" Value="[WIXUI_INSTALLDIR]" Order="1">1</Publish>
            <Publish Dialog="InstallDirDlg" Control="ChangeFolder" Event="SpawnDialog" Value="BrowseDlg" Order="2">1</Publish>
            <Publish Dialog="ServiceUserDlg" Control="Back" Event="NewDialog" Value="InstallDirDlg">NOT Installed</Publish>
            <Publish Dialog="ServiceUserDlg" Control="Next" Event="NewDialog" Value="BaseAddressDlg">NOT Installed</Publish>
            <Publish Dialog="BaseAddressDlg" Control="Back" Event="NewDialog" Value="ServiceUserDlg">NOT Installed</Publish>
            
            <Publish Dialog="BaseAddressDlg" Control="Next" Event="NewDialog" Value="CertificateDlg" Order="1"><![CDATA[(NOT Installed) AND (BASEPROTOCOL = "https")]]></Publish>
            <Publish Dialog="BaseAddressDlg" Control="Next" Event="NewDialog" Value="VerifyReadyDlg" Order="2">NOT Installed</Publish>            
            
            <Publish Dialog="CertificateDlg" Control="Back" Event="NewDialog" Value="BaseAddressDlg">NOT Installed</Publish>
            <Publish Dialog="CertificateDlg" Control="Next" Event="NewDialog" Value="VerifyReadyDlg">NOT Installed</Publish>
            <Publish Dialog="VerifyReadyDlg" Control="Back" Event="NewDialog" Value="BaseAddressDlg" Order="1">NOT Installed</Publish>
            <Publish Dialog="VerifyReadyDlg" Control="Back" Event="NewDialog" Value="MaintenanceTypeDlg" Order="2">Installed AND NOT PATCH</Publish>
            <Publish Dialog="VerifyReadyDlg" Control="Back" Event="NewDialog" Value="WelcomeDlg" Order="2">Installed AND PATCH</Publish>
            <Publish Dialog="MaintenanceWelcomeDlg" Control="Next" Event="NewDialog" Value="MaintenanceTypeDlg">1</Publish>
            <Publish Dialog="MaintenanceTypeDlg" Control="RepairButton" Event="NewDialog" Value="VerifyReadyDlg">1</Publish>
            <Publish Dialog="MaintenanceTypeDlg" Control="RemoveButton" Event="NewDialog" Value="VerifyReadyDlg">1</Publish>
            <Publish Dialog="MaintenanceTypeDlg" Control="Back" Event="NewDialog" Value="MaintenanceWelcomeDlg">1</Publish>
            
            ...
            
</UI>