Why Does the Standard Output from my Ansible Tower Job Show "object has no attribute '_cache'" Warning with a Callback Plugin?

Solution Verified - Updated -

Issue

  • Ansible Engine was upgraded to 2.4.2. Executing 'role' in Ansible Tower results in the following warning message:
 [WARNING]: Failure using method (v2_runner_on_ok) in callback plugin
(<awx_display_callback.module.AWXDefaultCallbackModule object at 0x20144d0>):
'CacheModule' object has no attribute '_cache'

Environment

  • Ansible Engine 2.4.2

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