Custom Job Role is unable to add task in assigned checklist

Summary:

Content (required):

Hello everyone,

Currently we are facing problem with a custom job role that's supposed to have full access to allocate and manager checklist, but while trying the user is unable to add the task in the checklist that's assigned.

Please let me know if anything I might be missing in the process.

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):

Allocate to checklist to Worker (PER_ALLOCATE_CHECKLIST_TO_WORKER_PRIV)

Manage HR Checklist Template (PER_MANAGE_CHECKLIST_TEMPLATE_PRIV)

Manage Person Allocated Checklist by Worker (PER_MANAGE_PERSON_ALLOCATED_CHECKLIST_BY_WORKER_PRIV)