Algo-trading dev fixes performance miscalculation and regression bug before live deployment

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A developer building an automated trading system spent five days finalizing notification infrastructure and uncovering a performance reporting error in a simulated account. The system's profit calculations were based on internal trade logs rather than actual brokerage balances, causing fees and taxes to be omitted and returns to appear slightly inflated. A bug fix the following day inadvertently altered cache logic, triggering a race condition that caused repeated heavy recalculations, though no erroneous orders were executed. Four separate fixes were applied, and the incident reinforced the rule that all persistent processes must be restarted whenever underlying code changes. The developer has pushed back the planned transition to live trading to after August 11, pending further stability checks.

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