I have a character with a ring of jumping who can make a 48' running long jump but her move is only 30'. RAW jumping uses your move and you need to use 10' before you can make a running jump. Does this mean she is limited to a 20' long jump unless she tales the dash action?
You could always rule that she ends her turn in mid-air and finishes the jump at the start of her next turn if you really want to, but that can be a mess.