cmd.exe is returning a "The system cannot find the path specified." error when the automationtool is looking for PLINK.exe. That executable should be located in \UE_4.15\Engine\Extras\ThirdPartyNotUE\putty\, but this folder is not included in binary builds. The folder does exist in GitHub and Perforce builds.
I spoke to RCL and this needs to be included.
Repro:
Result:
Launching onto the Linux machine fails during the build phase when the automationtool tries to run PLINK.exe located inside \UE4\Engine\Extras\ThirdPartyNotUE\putty\.
Expected:
Successful launch on to the Linux machine from a Windows machine.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-41474 in the post.