Subprocess error: OSError: [Errno 2] No such file or directory - for houdini submitter rop in Houdini 18

we have the same issues with hfs18.5.672 on a linux worker Centos 7.7
same error
here is my thread, didnt come any further.
I think it might be a Thinkbox/houdini/linux python issue of some sorts for the 18.5 version

here is the thread: