Maybe. The only thing I can conclude from the description is just that the lander was simply spinning too long (too long as in "the whole second") for their sof

Maybe. The only thing I can conclude from the description is just that the lander was simply spinning too long (too long as in "the whole second") for their software to handle the correct information from the sensors. Now it sounds too simple. But it's good that they made such an experiment before sending the whole rover, planned for 2020. https://en.wikipedia.org/wiki/ExoMars_(rover) https://en.wikipedia.org/wiki/ExoMars_(rover)