Every time I try and click on a quiz that has terms I have already learned, I am taken to a white error screen. The reload button does nothing, and the only way for me to get back to the account is to uninstall the app, reinstall it, and then log back in. I am able to view and interact with everything else it seems, but as soon as I try and do a quiz with review terms it bugs out. I tried a new quiz from a community list and it worked fine. I use the app everyday and it's only started this morning.
Only the schedules that say they still have items to review. I am able to learn new items, as well as do focused review and new lessons. Currently that is intermediate Japanese and Pre-intermediate Japanese (grammer).