JT reputation sadly less than sterling... Western Mainlines has had, what, like 4 patches now (I gave up after the second one).
They also apparently have another "Western" route in the offing - Westbury down to Taunton and across to Bristol and comments at UKTS on preview screenshots indicate their route builder is still relying on original 2007 Kuju assets to decorate the route. Just about acceptable in freeware but a commercial developer charging £££ $$$ for their work should by now have a library of their own 3D models they can call on.