If token has been approved, "approve button" should be hidden, "comfirm swap button" should be valid

[script-money]

My MTV has been approved, but create new swap, need approve again.

[shawnying]

If you have already approved, the button will be dark as soon as you clicked. So it's not a problem.

[script-money]

If you have already approved, the button will be dark as soon as you clicked. So it's not a problem.

This is a user experience issue, not a bug. In Uniswap, if a pair approved, users will only see the swap button.