Hallo Raze,thank you for your quick reply.
I wanted to follow Kiya's sequence exactly,because in replies to her post it was stressed this was necessary to avoid breaking the line of quests.She noted that step 1 should be to "Get black market quest from Trevor and missing wagon quest from Marcus." So the first thing I did was to join the merchant's guild,so I could get the quest from Trevor.I then went to Marcus and followed all the steps in order until Robin arrested Tingalf,but when I returned to Trevor (final step),he did not give me any options to talk about Tingalf at all(and his quest remained unsolved).So there wasn't even any conversation to skipp.And ,no offense, but I did not do anything in what could be logically called an "unexpected order".
