UK Map error - not routing via Bridleways for Gravel ride

Dashboard is not routing me (or even allowing me to select) a bridleway near me, even when in Gravel or MTB mode. It's bridleway WT110 near Speldhurst in Kent which is shown on Kent's Public Rights of Way website and bridleway legally permits cycling. Other routing software like Komoot offers this route without bringing up any errors. OSM also has it as a bridleway (link) so not sure if just a bug?

Note this is two sections of WT110 to take you all the way south from Lower Green Rd to Farnham Lane

Pls can you update so that it routes you down bridleways when Gravel is selected?

@Hammerhead what's best way to fix this?