I've been having the same issue. Was it every resolved? Is there a workaround? The "NO DATA" message seems like a caching thing but I can't figure out a way to approach a timeframe of interest and get predictable results.

Having the same issue. I tried this code to keep things short, but still definitely a kludge:

if(creep.pos.x*creep.pos.y === 0 || creep.pos.x === 49 || creep.pos.y === 49)
creep.moveTo(new RoomPosition(25,25,creep.memory.workInRoom));

Basically the first step in a room is a blind movement toward the centerpoint of the room. Then the next step is calculated normally. I know people like this actually.