Active Learner Count incorrect on offering page

Summary:

In the below offering 'Negotiation Foundation Workshop- Scotwork cohort12', you can see in the Course > Offering page that there are 10 active learners (highlighted in yellow)

However when you click into the offering it says 12

Content (please ensure you mask any confidential information):

There is genuinely 10 active but as the system is showing 12, it is messing up the waitlist functionality

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