When I click the "My Activity Streams" dropdown, I get a bunch of broken stream links - specifically, https://invisionpower.com/discover/546/, https://invisionpower.com/discover/547/, https://invisionpower.com/discover/548/, and https://invisionpower.com/discover/550/ (listed as stream_title_546, stream_title_547, stream_title_548, and stream_title_550.

How do I fix this?

Also, these are under default streams, not custom streams

These should be cleaned up now. Thanks.