APM With VMware View Login

I am setting up an access policy that will allow for authentication into our VDI environment. The access policy is laid out as follows:

 

Client Type(VMware View) -> VMware View Logon Page(Radius, Input Field 2=RA_Password) -> RADIUS Auth -> VMware View Logon Page(Windows Password, Input Field 2=AD_Password) -> AD Auth -> etc...

 

Logging into the Horizon client I get prompted for my Radius authentication (PIN+OTP), get a bad user name and password error, then get prompted for my AD log on information. Once I authenticate to AD, my resource is assigned correctly.

 

The logs on the Radius server show a successful logon. The badPassword count for my AD account goes up by 1 after Radius authentication occurs and is cleared after a successful AD logon. It appears Radius is trying to pass the password over to AD, even though I have them set as different inputs. It's like single sign is being attempted, but I don't know how APM is being told to do so.

 

Any insight into why this occurs and/or any tricks to get around it would be great.