Language reset inconsistent?

After a Settings - Languages - reset, under Statistics the number of known words is nicely set to 0. However in the Lesson Feed the individual items still report like ‘New words:11 (73%)’ instead of 100% as expected, somehow still remembering the known words. Why? Opening such a lesson shows all words blue.

Hi Jandar,
No worries, your language stats did reset properly. We do have an issue with new words percent and they aren’t correct at the moment.