The Exchange Didn't Close My Position. It Got Worse From There
My bot tried to close a SHORT position. Binance rejected the order. The bot thought it succeeded. The position bled -121U before I woke up.
Debugging
When Market Close Fails: Exchange API Nightmares at 3 AM
My bot tried to close a position. The exchange said no. Three times. Here’s what happens when market close fails and how to survive it.
Orphan Orders: The Bug That Opens Positions You Didn't Ask For
My bot left a stop loss order on the exchange after closing a position. Hours later, it triggered and opened an unintended trade. Here’s what caused it and how I fixed it.
The Timezone Bug That Cost Me 9 Hours of Trades
My bot was missing every trade for the first 9 hours of each day. The cause? Mixing UTC and KST in one line of code.
The 3 AM Bug: PID Lockfiles and Duplicate Processes
My bot was running twice. Two instances, same account, doubling every order. Here’s how PID lockfiles saved me.