RA Hyperion Essbase agent cannot submit jobs remotely from a Unix server.
To execute MaxL scripts, the RA Hyperion Essbase agent needs to be installed locally on the Hyperion Essbase host server.
This is because the agent uses a binary (essmsh.exe), which is delivered by Hyperion Essbase itself on Windows.
Upgrade the RA HyperionEssbase solution to the fixed version:
RA.HyperionESSBASE 1.0.1 - planned release date ~29 September 2018