Issue with Udemy Courses Not Appearing Under Topic Communities

We’ve identified an issue related to Topic Communities. These communities are tagged with courses coming from Udemy, which we recently integrated. The Udemy courses are successfully syncing under Self-Paced Learning, and we can see them in the catalog.
However, when these courses are tagged to Topic Communities, they are not visible to learners in the Learning Catalog. Only a few Topic Communities appear as expected, while others do not. These Topic Communities are also correctly tagged under Category Communities.
Could someone help us understand what the exact issue might be or what specific configurations we should review to resolve this?