Completed Oryx hm challenge last night on my Hunter. Carried 20 moldering shards & used 3 of coins. Got Pulse and Scout rifle from right chest facing entrance doors. Then no empty primary weapons slots. Left chest when facing doors showed my rewards were 3 legendary primary weapons and The Last Word. Yes 3, I know cos' I couldn't believe my luck of getting 5 primaries (3 red boxes with cross and some notation like primary weapons full) - should have taken photo but didn't know what was going to happen.. Went to Postmaster and zilch there??? How does this happen?