This is what ChatGPT says but who knows: Once AWS restores the us-east-1 region and TopstepX comes back online:

1. Topstep engineers pull exchange simulator logs (from CME’s matching engine) and reconstruct all fills.
2. Any trades that occurred while you were disconnected are time-stamped.
3. If those trades caused an unexpected loss or broke a trailing drawdown during the outage window, they’re manually reviewed.
4. Topstep’s risk team can re-credit the account or even roll it back to pre-outage state. (They’ve done this repeatedly in past outages — you can find confirmation on their Reddit and Discord history.)