CRITICAL BUG FIX:
- Position Manager monitoring loop (every 2s) could trigger TP1/TP2 multiple times
- tp1Hit flag was set AFTER async executeExit() completed
- Multiple concurrent executeExit() calls happened before flag was set
- Result: Position closed 6 times (70% close × 6 = entire position + failed attempts)
ROOT CAUSE:
- Race window: ~0.5-1s between check and flag set
- Multiple monitoring loops entered if statement simultaneously
FIX APPLIED:
- Set tp1Hit = true IMMEDIATELY before calling executeExit()
- Same fix for tp2Hit flag
- Prevents concurrent execution by setting flag synchronously
EVIDENCE:
- Test trade at 04:47:09: TP1 triggered 6 times
- First close: Remaining $13.52 (correct 30%)
- Closes 2-6: Remaining $0.00 (closed entire position)
- Position Manager continued tracking $13.02 runner that didn't exist
IMPACT:
- User had unprotected $42.73 position (Position Manager tracking phantom)
- No TP/SL monitoring, no trailing stop
- Had to manually close position
Files changed:
- lib/trading/position-manager.ts: Move tp1Hit/tp2Hit flag setting before async calls
- Prevents race condition on all future trades
Testing required: Execute test trade and verify TP1 triggers only once.
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