If you can’t wait for the fix and want to get the expected correct values, the posts @Gerald mentioned are worth going through as they mention solutions. You can also find the relevant corrected fields/streams by searching for them in an activity view.
If you’re looking to learn how to extend the platform to meet your needs/wants, I think “fixing it yourself” provides an easy entrypoint challenge.
To fully “fix it”, you want to add the following:
- Custom activity stream
- Custom interval field
- Custom activity field