Force-Close: Hold Time, Drift, Missing Bars

Which of these exits sends the pair to COOLDOWN rather than LOCKED?

• TIME
• MISSING_BARS
• BETA_DRIFT

Why does this course flatten a trade when a bar is missing instead of carrying the last price forward?

• Carrying the price forward is slower to compute
• A carried-forward price invents a spread nobody could observe or trade on
• The venue cancels open orders when a bar is missing