Problems running query version 5.2.2

The query below used to work on version 5.0.2 but results in an error on version 5.2.2:

ERROR 2018-02-22 15:23:29,339 com.complexible.stardog.protocols.http.server.StardogHttpServiceLoader:accept(233): An unexpected exception was handled by the server
org.openrdf.query.QueryEvaluationException: java.lang.NullPointerException
PREFIX up:<> 
SELECT ?link
  SERVICE <> {
		<> a up:Protein .
		<> rdfs:seeAlso ?link .
    	?link up:database <> .

We have very recently pinpointed a problem that exists specifically with the uniprot endpoint and 5.2.1. Given that, I’m not 100% sure what would have made it work in 5.0.2, outside of some race condition that maybe wasn’t being hit.

All that said, this will be taken care of in our next release.