When a level is won in endless mode the Go-Button on the "Mission briefing"/"Did you know" screen in between levels restarts the previous level instead of starting the next.
The same happens if you go to heros screen and tap on "start level" there.
Edit: This seems to happen only when winning for the first time. Probably the new level is not generated yet and therefore is not bound to the button.
When a level is won in endless mode the Go-Button on the "Mission briefing"/"Did you know" screen in between levels restarts the previous level instead of starting the next. The same happens if you go to heros screen and tap on "start level" there.
Edit: This seems to happen only when winning for the first time. Probably the new level is not generated yet and therefore is not bound to the button.