Firstly, don’t let this worry you. Check the following points:
Was it quiet enough in the room when the game was on? Was the child distracted? Where the instructions loud enough? Had the correct age been entered in the settings?
In most cases, the results are of no concern whatsoever. But it is not unheard of for children to repeatedly be unable to solve a particular task. That’s where the Lazuli app can provide initial indication of potential problems with mathematical skills. It’s important to note, however, that, while Lazuli is based on scientific findings, the game cannot and should not replace a doctor’s diagnosis.