Pantone colors are off

Hello all, We're running 2 HP Latex 360's, both with the current firmware, RIP software is Onyx 11. We have also recently moved locations across town. We started noticing that all of our prints have differed in color from previous identical jobs across multiple substrates. Primarily, Pantone colors are printing darker than they should be, but in some other cases it is also lighter (depends on the specfic Pantone color). We have run through the different image optimizations. Color calibrated each of our substrates. Substrate profiles come from the library accessed through the printer itself. Passes are identical to the previous jobs. Both printers return the same colors. As a temporary fix we've been printing color swatches through Onyx to find different ink mixtures that are closer to the actual Pantone color and then doing a color replacement, but the better solution would of course be getting the colors to be correct from the start. Thank you for any assistance