I tried out paged.js recently for a genealogical report exported from Gramps, but I had to use PrinceXML because counter-reset to start at a page does not work: https://gitlab.pagedmedia.org/tools/pagedjs/issues/91
Do you have a repo I could play around with? I had the same issue, but for my use case I figured a work around - primarily by using classes. I could spend a few minutes and see if I can get it working for you.
But yes, it’s a deficiency in the system currently
Apart from this feature everything worked fine.