Just got to the teleport puzzle on level 3. I've partly figured it out at least but ...
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.. Having got the central trapdoor closed, and found the pressure plate that opens the portcullis, I can't seem to get through it in time before the item is teleported off the plate and the portcullis closes. I don't want a solution to this, but I would like to know whether that's the whole puzzle and it's just a matter of getting timing right to make it through, or whether there's something else I need to figure out.
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I've been experimenting with combinations of the pressure plate near the door, and the pressure plate and button down in the pit, so far to no avail. Am I on the right track? If not, could I have a subtle hint, NOT a solution, to start me off?