I searched the forums and did not see a similar problem.
I received my MK3 S61 today. Before doing anything, I watched the How To video on YouTube and read the Getting Starting guide on NI website.  I plugged it in, registered it and then updated the firmware.  I already have Native Access and the Kontact 7 Player due to an included instrument with some Artruria gear I purchased in the summer.  But I am otherwise completely new to NI  ecosystem.  I purchased the upgrade to Komplete Standard 14, so after registering my S61 keyboard, I added the serial number for Komplete 14.  I then first downloaded and installed Kontact 7, Komplete, Battery, FM8, and Reaktor.  After installing those, I then just chose "Install All" to my external hard drive.  
Everything said they installed except for Neutron 4 Elements and RX 10 Elements.  I then spent hours reading the NI Support pages and doing everything they said.  The Neutron 4 Elements installed on the second try, but the RX 10 will not install, no matter what, after about 12 attempts.  I just wanted to start playing my new keyboard, so I decided to move on.
I then opened Kontakt 7 as a standalone application and configured the Audio and MIDI.  I then did the same with Komplete, FM8, and Battery.
Then, I opened Logic Pro X.  During startup, I auto-assigned the S61 as a controller.  After that, the following sequence occurred.
- Opened Logic Pro X and the DAW button on the S61 lights up
 - Added Kontakt 7 Stereo in an empty channel strip
 - Browser in S61 still hasn't loaded yet
 - Choose the first preset in the list on the Kontakt Browser on the computer, and Browser and Plug-In buttons on S61 light up
 - Press the Browser button on the S61 and nothing happens.
 - Then, all of the buttons and encoders on the S61 stop working.  It's frozen and will not respond.
 - I reset by restarting the computer.
 
I have now repeated that sequence 5 times, and the same exact thing happens every time.  I just want to play my new keyboard.