Looking at the 12z / faxes looks like unfortunate timings with the cold front moving south and the Atlantic low moving in keeps the low on a south of the uk track - just bad luck really.
off topic - it’s been a fascinating chase - although feels like it’s been going on for weeks but a thank you to all the inputs on both sides of the coin - looks like very much model fatigue setting in and just bad luck the pieces not there to give icing on the cake with a noteworthy snow event.
time to take a break and come back for anything in Feb that may be of interest