I cant get Right Address balance

[wktian1987]

contract GetMyBalance {

    // below function cant get right result
    // using Remix I get:
    // 0: uint256: 115792089237316195423570985008687907853269984665640564039457581007913129639935
    function _getMyBalance()
        // external
        public
        view
        returns(uint256)
    {
        return msg.sender.balance;
    }

    // Below can get right result
    // by calling getMyBalance()
    // and then get right 
    uint256 public logMyBalance_;
    function getMyBalance()
        external
    {
        logMyBalance_ = _getMyBalance();
    }

    // I can get right result
    uint256 public logMyBalance;
    function writeMyBalance() external {
        logMyBalance = msg.sender.balance;
    }
}

[Aniket-Engg]

I can reproduce it. With VM, it works fine but with testnet, it shows wrong value as OP mentioned.

[Aniket-Engg]

I tested it further. Issue appears with ropsten, rinkeby, and goerli testnets on remix and outside remix too (tested using ethers.js). It works fine with vm on remix and with kovan on or outside remix. This doesn't seem an issue with Remix IDE.

There is a similar issue here too: https://github.com/ethereum/solidity/issues/8545