There is newer function for tokens that have Fee on Transfer that is causing issues on some transfers, could you please take a look to have a sanctity check [tokenin or tokenout] have this function in the abi to use the correct transfer method to prevent failed TX's

https://uniswap.org/docs/v2/smart-contracts/router02/#swapexacttokensfortokenssupportingfeeontransfertokens
function swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;

Thanks for keeping this project alive and well!