Sorry for not answering your question. No extra blueprints have been loaded onto the server. Only the default blueprints are on the server.

I am just wondering, is it due to some memory leak or something (quite difficult in Java tho...)?

I want to detect parts of the docked ship from the station to identify which ship is going over the belt and then route it to its destination using that information. (e.g. park ships in the ship parking and park cargo pods in the cargo area)