maps don't show player location and won't combine with compass

I have a bunch of maps that are explored.  previously they showed player location.  Now they do not.  Supposedly, one has to combine them with a compass to make this possible.  When I go to any station (whether it be anvil, cartography table, crafting table, what have you) compass cannot be placed on station with map, or, in the case of the anvil, there is a big red X preventing combination.