First, here’s the required info:
Map: bm_c1a1a at: 1319 x, 1808 y, -448 z
Pos: 1319.504272 1808.179565 -448.468750;setang 11.261879 -95.059372 0.000000
What went wrong:
This is the first elevator after the main incident… if you get onboard, and activate it, but are partially off the elevator while it lifts, you will take -1 point of damage and the elevator will lower back down and you will not be able to activate it again. Only way to continue is to reload from earlier save.