Interest and InterestCategory AddOrUpdateAsync task not returning a response when updating

[JLP98]

When using the MailChimpManager.InterestCategories.AddOrUpdateAsync task, if I update an existing Interest category in MailChimp, it performs the update but never returns the response and eventually times out. I can see in MailChimp that is has performed the update successfully, which is good, but it's problematic not having a response returned, the task status is just stuck as "WaitingForActivation".

The same issue also occurs for me when updating existing interests using MailChimpManager.Interests.AddOrUpdateAsync and MailChimpManager.Interests.UpdateAsync. It seems like the PATCH requests are not getting a response.

If I am adding a new interest category or interest and using AddOrUpdateAsync in the same way, it works perfectly, giving me a response. The issue only occurs when updating an existing interest or interest category.