I hit this playing with the sync tool:
15:11:37.617 [update 0] WARN org.wikidata.query.rdf.tool.Update - Contained error syncing. Giving up on Q19324639
org.wikidata.query.rdf.tool.rdf.Munger$BadSubjectException: Unrecognized subjects: [http://www.wikidata.org/entity/statement/q2067709-034091F7-4167-4CE3-AC08-5FC432530023, http://www.wikidata.org/entity/statement/Q2067709-F626DD85-7330-45AB-B6CE-A984F9F96B48, http://www.wikidata.org/entity/statement/Q2067709-A5D7C27D-E9B4-41F8-82A2-3D75B00D5A25, http://www.wikidata.org/entity/statement/Q2067709-95543F57-8E64-47AA-89EF-71F80467268A, http://www.wikidata.org/entity/statement/Q2067709-E8B71900-6A80-4562-82CC-A8AA3671136B, http://www.wikidata.org/entity/value/4017cd5b2efe4f54f5a1bcbf305f4dfa, http://www.wikidata.org/entity/statement/Q2067709-74436C53-7C3F-4667-AAE1-FF488C67757F, http://www.wikidata.org/entity/statement/Q2067709-3816B198-A457-47BB-BD2A-DAACFF1369C0, http://www.wikidata.org/entity/statement/Q2067709-805BE5D1-AC23-48DE-8F60-0164FFCF4FAB, http://www.wikidata.org/entity/statement/Q2067709-88B4C06D-5052-430B-A579-E4F4DF3D0C2C, http://www.wikidata.org/entity/statement/Q2067709-CCB4C139-EDC9-4C58-8380-B9CC9FA60F8E, http://www.wikidata.org/entity/statement/Q2067709-D8520DF5-C1BF-45D2-8F80-2D623C90F2B4]. Expected only sitelinks and subjects starting with http://www.wikidata.org/wiki/Special:EntityData/ and http://www.wikidata.org/entity/
at org.wikidata.query.rdf.tool.rdf.Munger$MungeOperation.finishCommon(Munger.java:477) ~[classes/:na]
at org.wikidata.query.rdf.tool.rdf.Munger$MungeOperation.munge(Munger.java:201) ~[classes/:na]
at org.wikidata.query.rdf.tool.rdf.Munger.munge(Munger.java:122) ~[classes/:na]
at org.wikidata.query.rdf.tool.Update.handleChange(Update.java:255) ~[classes/:na]
at org.wikidata.query.rdf.tool.Update.access$0(Update.java:248) ~[classes/:na]
at org.wikidata.query.rdf.tool.Update$1.run(Update.java:195) ~[classes/:na]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) [na:1.7.0_75]
at java.util.concurrent.FutureTask.run(FutureTask.java:262) [na:1.7.0_75]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_75]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_75]
at java.lang.Thread.run(Thread.java:745) [na:1.7.0_75]
It should be fixed.