Device Used: OnePlus One
Android Version: 6.0.1
ChinesePod App Version: 2.0.7
Description:
Hello,
I’ve used a filter on the “Qingwen” serie. Then noticed that there were indeed some videos for the “upper-intermediate” level (via the “All” tab).
However, when checking under the “Upper Intermediate” tab, none of those videos could be found.
Maybe it’s due to your tagging system? 
Thanks a lot for having a look at this issue.
Mathieu