I tested a BTC stake, but it is not showing properly in the system.
In listutxostakes it shows as:
 "cd9450ed04bfb0aa4354301be33c2854c6fb864baee198d0ccb801fc7f6c63fa": {
    "CPK": "BAqLrxadHXCmLjpKkBK17HEQRU5RkKgZUP",
    "Ticker": "BTC",
    "Address": "3MFdfBsBLBwT34bMswDTFnFDQfAjCWZQSj",
    "Value": 0,
    "NativeAmount": 0,
    "ForeignAmount": 0,
    "Coverage": 0,
    "Time": 1624711624
  },
so if foreignamount is 0 this would explain why it is not counting. 
But the address actually has 0.20 BTC utxo (and this was detected and shown correctly when I created the stake from the portfolio screen)