It seems some structures which double up as footpaths don’t get treated as routable, in the link below this shows a 5km route generated instead of the few metres it should be to cross the lock. Is there an option to make structures labelled as footpaths routable ?
I’ve checked the joins in OSM, and confirmed it should be routable with other tools like osmand.
Thanks,
Hey,
my best guess is that this happens because there is no highway-tag on this lock.
Have a look at our tag filtering for foot - when no highway-tag has been provided, locks won’t be considered for routing.
I am unsure whether also accepting waterway=lock_gate is the way to go. Do you have more insight into how locks and weirs are usually tagged regarding highway or foot-tags?
In any case, I will open an issue for this and report back 
Best regards