i have encountered a significant bug in the iPad app which makes it essentially unusable. When I try to save a LingQ the word turns yellow and it appears to have worked. However it doesn’t then “stick”. If I save a LingQ, but then pull down to refresh, it disappears and the word goes blue again. It doesn’t matter how I exit a lesson, the saved LingQs all disappear. I’ve tried restarting the app and it makes no difference. In other respects it seems to connect to the system without issue - it loads lessons etc fine.