Here is the solution to the hieroglyphs / artifacts / Egyptian museum puzzle. I was also annoyed I couldn't find a solution in the thread besides repeating the in-game tip. You have to match them to how they look in the "reflections," not as though they were actually being reflected. I understood that from the tip, but actually getting it to work was annoying because there's no positive feedback you've done one correctly, so you finish them all and it still doesn't work, making you doubt you're doing the mechanic correctly.
So you basically just set them all to where they should be, then go through one-by-one wiggling them a little bit to find out which is 1 pixel misaligned until it works.
This screenshot is from one frame before it successfully unlocked, so I was wiggling the one my cursor is on.
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