issues with new fiori app versions

I am trying to use some internal odata services from gateway.  I tried creating a new Fiori app (version 1.28) and the oData is not working, giving me a Timeout error message instead.  However, if I use the oData service with an older deprecated Fiori version (i.e. 1.0.1) the service is received totally fine.  Why is this?  Do I need to change something in the configuration for this to work?