At around 7.4 orthonormal basis and there after, the tex rendering stops working on the github readme preview page. Instead, it is replaced with a red error bo

At around 7.4 orthonormal basis and there after, the tex rendering stops working on the github readme preview page. Instead, it is replaced with a red error box saying: [ Unable to render expression. ] I wonder if there is an artificial limit for the amount of latex expression that can rendered per page.