(No longer a spoiler for you really) (this stuff is just curiosity on what info you had when you solved it) did you find the information that is in black hole forge I think about how the towers don't need to align perfectly but can be off by a few degrees and that anyone that walks into the warp is immediately warped out? I think those were the hints that are supposed to tell you to run into the warp after the sand starts to come down (since that's when the center of ash/ember twins is overhead, aka when you can warp)