If you're using Mizar on Binance SPOT for trading and you occasionally find a small fraction of your tokens remaining on the exchange after closing a position, it's likely due to dust. Dust is formed when the bot can't close a position in accordance with the exchange's trading rules, as the amount traded for closure falls below Binance's minimum allowed threshold.
In Binance, dust can be avoided when fees are paid using BNB, and you can even reduce your trading fees. Learn more about how to use BNB to pay fees on Binance here.