Error when installing CP4D 4.0.9

[fketelaars]

Describe the bug
When installing CP4D 4.0.9, the following error is thrown:

TASK [cp4d-subscriptions : Prepare yaml file for platform operator subscription] ***
Saturday 29 October 2022  13:40:45 +0000 (0:00:00.050)       0:06:36.316 ****** 
An exception occurred during task execution. To see the full traceback, use -vvv. The error was: ansible.errors.AnsibleUndefinedVariable: '_use_case_files' is undefined
fatal: [localhost]: FAILED! => {"changed": false, "msg": "AnsibleUndefinedVariable: '_use_case_files' is undefined"}