Error: DNS server: Broken delegated domain

Hi

in a Windows 2012 environment on all DCs, I ran dcdiag/test:dns and I get these delegation errors
.......
Running partition tests on : JSSResearch
Running enterprise tests on : JSSResearch.local
Starting test: DNS
Test results for domain controllers:

DC: MTL-DC01.JSSResearch.local
Domain: JSSResearch.local

             TEST: Delegations (Del)
                Error: DNS server: mtl-dc01.jssresearch.local. IP:192.168.169.69 [Broken delegated domain jssresearch.local.JSSResearch.local.]
                Error: DNS server: mtl-hv1.jssresearch.local. IP:192.168.169.66 [Broken delegated domain jssresearch.local.JSSResearch.local.]
       Summary of test results for DNS servers used by the above domain controllers:
          DNS server: 192.168.169.66 (mtl-hv1.jssresearch.local.)
             1 test failure on this DNS server
          DNS server: 192.168.169.69 (mtl-dc01.jssresearch.local.)
             1 test failure on this DNS server
       Summary of DNS test results:
                                                 Auth Basc  Forw   Del  Dyn  RReg Ext
               Domain: JSSResearch.local
             MTL-DC01                     PASS PASS PASS FAIL PASS PASS n/a
       ......................... JSSResearch.local failed test DNS

So  MTL-DC01 and MTL-HV1 are both DCs and DNS servers (MTL-DC01 is the PDC)

I checked the _msdcs and it look like in the image. I don't know what is wrong

Why the domain show up like this jssresearch.local.JSSResearch.local.    ? I don't understand

Any ideas folks ?

Thanks a lot

Titus