With some queries i'm not seeing all data that should be available for an item.

For example, compare this query:
http://tinyurl.com/y8grscgg (dealing with Q57152078)

With this query:
http://tinyurl.com/y75hdmfc (dealing with Q57152093)

Note that with the first example the memberStart and memberEnd is missing, even though the data *is* available on the Wikidata item page and in the RDF dump. This can also be seen when directly accessing the statement:

http://tinyurl.com/yc7o7teu

We noticed that this problem was solved with another item (Q57152141) when we did an edit, so the item was reindexed.