Elevated 500 errors in Paper Trading

Incident Report for Tradier

Resolved

The paper trading system suffered server-side issues in relation to order processing, leading to users getting elevated levels of 500 errors when submitting, modifying, and cancelling paper trades. This did not affect live trading, and all other simulation environment endpoints such as balances, market data, etc remain accessible. The errors reduced significantly, and the issue was marked resolved as of 11:38 ET.

Posted Aug 17, 2026 - 10:30 EDT