Weird Parameter Is Requested? Mandatory parameter '-0.001' was not sent.

I am trying to place a future order on the BTCBUSD Perpetual symbol and keep getting this error: “Mandatory parameter ‘-0.001’ was not sent, was empty/null, or malformed.” I have searched the docs and cannot find any mention of ‘-0.001’ anywhere. The exact same code was working for every other futures symbol, I only got that error when ordering on BTCBUSD.
These are the parameters I sent:
order = self.client.futures_create_order(

Does anyone know why I am getting this error?

Hi. Can you extract the raw query string (without signature)? It will be helpful for us to investigate the issue since from here we are not sure what exactly those constants represent for. Also, which environment did you try?

I fixed it, it was my fault. I was calculating the quantity to buy using my USDT balance from my old program, forgot to update to BUSD!