it is from light to light but these are connect with a plug which can only go 1 way, checked the + and - wires and they all seem to be correct. It doing my head in and I’m prob missing something so obvious lolthat should have worked fine with the 24W driver.
I have the 12w driver, same make as yours, and it works with just one these lamps - https://www.amazon.co.uk/gp/product/B086QX9TLX/ref=ppx_yo_dt_b_asin_image_o03_s00?ie=UTF8&psc=1
Only other thing I can think of is that you have cross connected wires at some point if these are wired in series ie light to light to light.