APM saml idp entity id match

hello experts. Trying to configure a single vs as an idp with multiple external sp connectors. i have created 2 idps and 2 sps and bound them. the entity ids are different https://vip.example.com/idp1 and https://vip.example.com/idp2. I exported the metadata from both and uploaded to samltest.id. using the samltest.id idp tester, no matter which entity id I test, it always returns idp1. It seems to not be doing a match on the entity id. the apm log tells me so as does samltracer in firefox. v12.1.5.3. any ideas would be appreciated. idp initiated is fine. sp initiated is not. Thanks.