training mode doesn’t work properly

What do you mean exactly?

Well, to begin with, there was no thread to be found right after I did create it. So I had no chance to describe my problem.

Starting yesterday and occurring again today, while solving puzzles of all themes within the range of 950-3000, the system showed a message „Keine Taktikaufgaben gefunden“ (no puzzles found). The app completely froze. Even after restarting my iphone, the problem persisted. After 3 tries today, I could solve 2 puzzles - and it happened again. Whatever setup I tried, nothing changed.

Do you have the setting Puzzles I Missed selected? If so, that's the issue. Once you have cycled through those, it won't provide any more.

Hey Martin! Thanks for your help so far, highly appreciated! 🙏

I have turned that setting on, right. But I’m sure, I had it all the time… As you can see in the various themes, the percentages are always (way) below 100 (many 0 if I‘d scrolled down). So I thought there should have been plenty of puzzles left… Or do I miss the point here?

My understanding is once you correctly answer a puzzle in training, it is removed from the list. So, if you've done that a lot, the missed puzzles may empty or low if you've recently failed some rated ones