It doesn't look like anyone has found a solution to this. I have a new AX 12 R3 install where pretty much everything is on one server. So far so good then I get to Enterprise Search that seems to install ok but ultimately ends in error on the install with
"Could not retrieve BDC Search metadata from the Microsoft Dynamics AX AIF Services."
In the Application error log I see:
An error has occurred in the services framework. Method: AifMessageInspector::AfterReceiveRequest. Error: System.ServiceModel.MessageHeaderException:
Multiple headers with name 'CallContext' and namespace 'schemas.microsoft.com/.../datacontracts' found.
I have done updates to the latest as of 10/21/15 and have completely re-compiled X++, Synchronized, and re-compiled CIL. No other problems are present and there is an Enterprise Portal installed. I gave Dynamics it's own Sharepoint Web Application and all Pre-requisite checks pass. I am at a loss at this point.
Any ideas?