There were multiple change in Ansible server in master. In master the order of changes is

https://gerrit.onap.org/r/#/c/66131/ (Dan)

https://gerrit.onap.org/r/#/c/77516/ (Taka) – reverts some changes of Dan

https://gerrit.onap.org/r/#/c/77578/ (Sylvain – mixes changes of Dan with Changes of Taka)

The result is that ansibleSysCall from AnsibleModule.py is not compatible with ansibleSysCall from RestServer.py – different input arguments and the playbook execution does not work.