Not able to issue certificates with FIM CM Modern App

I am not able to issue certificates using FIMCMModernApp_1.0.214.622_AnyCPU on Windows 10 and MIM CM 4.3.1935.0 in Windows Server 2012 R2.
It seems that MIM CM expects a CMC request but the FIMCMModernApp_1.0.214.622_AnyCPU on Windows does submit a PKCS#10-Request.

The error message on the server is:
1) Exception Information
*********************************************
Exception Type: System.Runtime.InteropServices.COMException
ErrorCode: -2146881269
Message: ASN1 bad tag value met. (Exception from HRESULT: 0x8009310B)

StackTrace Information
*********************************************
   at System.Runtime.InteropServices.Marshal.ThrowExceptionForHRInternal(Int32 errorCode, IntPtr errorInfo)
   at Microsoft.Clm.Crh.CertRequest.Util.ResignPKCS7Request(Byte[] req, Byte[] hash)
   at Microsoft.Clm.BusinessLayer.CertificateServer.ResignCertificateRequest(String encodedRequest)

a) Is FIMCMModernApp_1.0.214.622_AnyCPU on Windows 10 with MIM CM 4.3.1935.0 supported?
b) Can the FIMCMModernApp_1.0.214.622_AnyCPU be configured to generate CMC request instead of a PKCS#10-Request?
c) The certificate issuance using the MIM CM Webapp works fine

Any help would be appreciated.