On the "Progress of lessons" tab in the result page, when I change the "Order by x-axis" or the "Show" properties, the labels that appear when you hover a dot in the graph are still in the original order. For example: If I choose to show only the open lessons, the first label tells me "Lektion 1 (asdf jklö)". The position of the dot is correct, just its label isn't.

Thank you very much for your message. You are right, here we have an error. We will solve this in our next software version.