Can't open downloaded courses

I bought a pro subscription yesterday, mainly to be able to use the app offline, but it appears to not be working. Every time I try to open a downloaded course, a message telling me that there is no collection appears. Also, I noticed that grammarbot is not working (although it might not exist for the Swedish courses). Can someone help me, please?

Hey @k34908279

We’re aware of this issue and will be pushing out an update soon.

Thank you for your patienceand for reporting this issue.

Beatrisy

We’ve just released a fix. Updating to 2.3.20 (6137) will fix this issue. Please let me know if this issue persists.

Beatrisy

Just installed the latest update. Experience the same crash on downloaded German 1,2 and 3 courses. After disabling the download, the course allows reviews to occur without crashing (also the bug with reviews continuing past the noted amount persists).