Thread:Elledy92/@comment-26838855-20190425183005/@comment-26838855-20190502013838

MJLogan95 wrote: You reappear on the machine when you make the jump back to prime timeline. When Tony and Steve went to New Jersey, they were not returning to the prime timeline, they were jumping back in time. When all the Avengers finished the Time Heist, they all ended up back on that platform.

Therefore Cap should have returned on the platform. Him not being there led to the belief that Cap's time travel to the past was within the same timeline. However, the Russos have since debunked this by stating that he did indeed cause an alternate timeline and then took the shield and jumped back into prime timeline 2023 after living out a life in the alternate. Exactly, just the way he jumped back is not established.

Also, seeing some videos where people also assumed the timelines ceased to exist once the stones were returned. Not returning to that point, the discussion has moved on, just saying I feel less crazy about the fact that this was at least an interpretation of the way the Ancient One scene is laid out.