@ResentedJaguar1 with the latest patch, it should warp you back up top on save load if you managed to get down there without double jump
I am stuck on Dathomir too on the PC version. I went there to get the double bladed lightsaber which I did but then triggered the order 66 memory when I went into the tomb and hit a meditation ring. Now I am stuck in the memory because I don't have force pull or double jump.
For anybody that is interested or stuck with the bridge disappearing glitch, if you’d like to still play the same save and collect all the little hidden items and chests on other plants there is a way to glitch yourself back to the mantis. There is a wall where you need special equipment to climb which brings you to an elevator.. that elevator is what takes you all the way up. Since you wouldn’t have equipment at the moment of the glitch usually there would be no way up. But if you look to the right of that wall before the elevator, there is a torch which you can jump on top of. If you get on top and quickly jump again to the ledge before it kicks you off the torch, you can climb up, use the elevator, and get back to the mantis.. I guess you could play around on the other planets and stuff until they fix this glitch, if the ever do...
