Best answer by Mathis
Ok, quick update about this - thanks to all of you who've reported this being an issue. We've run further tests around this and there indeed seems to be an issue with some tracks (however not all tracks).
We've informed our engineers and they are currently looking into it. We'll update you here as soon as we hear back from them.
Thank you for your patience. If you have any further questions in the meantime, feel free to let us know here and we'll do our best to help.