after getting the lightbox to work with the post pages and sorting out the logos etc I started to expand the use of post tiles to different categories of the site.
I copied and pasted the content of the Hearth Products page onto the Central Vacuum page and changed the categories='hearth-products' part to categories='centralvac' after creating a centralvac category.
I then published the page but instead of showing central vacuum posts its showing hearth product posts. I've checked and double checked the code, no emboldened text, no typo, no trace of hearth products anywhere on the page and yet it insists on showing the wrong posts.
Oh and the central vac post tile is there among all the hearth products stuff on the central vac page AND on the hearth products page.