You probably need to add the template you created to your mobile style.
You probably added it initially only to your default style, so your mobile style is missing the template.
I don't know if it talks about it in this article but you should really enable debug mode in the admin cp (
https://vborg.vbsupport.ru/showthread.php?t=165623)
In debug mode you can add a net template to the usually hidden "MASTER Style" which will automatically allow it to be used in ALL styles simultaneously instead of having to add it individually to each style.