BUSD with Zero Cost

BNB Wallet using Pancake to provide liquidity. Sell XYZ token + BUSD token for Cake_LP liquidity. Now as you are aware the BUSD is a stable coin. The question is how can your system pick up BUSD with zero cost and report I have a full realized gain. For example: if my BUSD is 1 for 1 and I have $100,000. My cost should be $100,000. Not zero cost. Cointracker is picking it up as zero cost and showing I have a gain of $100,000. There are no warning messages. How can this be? Does your program go through an external auditor for review? Now I have to review all the past transactions. I could have materially overpay in taxes if I didnt catch this one.