Me and my friend both had a hard time jumping on this one ship in particular with the Warlock.
I'm sure some have had no problems, but if there was two, I'm sure there is more out there.
Running and jumping after the "ship that tries to clothesline you" pretty soon, should land you on the next one.
Its possible to jump too soon, but don't wait too long. Its almost immediately after that low-flying ship.
Hope I helped some stuck Warlocks out there!
https://www.youtube.com/watch?v=dhy9mRLUfz0
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I have done all of the platforming in the raid on all 3 characters and warlock jump is the best for it (even though the titan lift edges out warlocks on the ship jumping). Warlock precision is the best for being torn between dimensions.