S2F accounts have a Daily Loss Limit (DLL): the most you can lose in one trading day. It's separate from the max drawdown.
Size | Daily Loss Limit |
25K | None |
50K | $1,250 |
150K | $3,750 |
If you hit it
Open positions are closed and the account is Paused until the next trading day starts (6:00 PM ET). It isn't failed.
The DLL is measured from your balance at the start of the day. It doesn't trail intraday.