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I am using the below official contract given in documentation of Ox, for swapping ERC20 coins.

0x-Smart-Contract

So,The transactions like LINK-WETH, WETH-DAI, DAI-WETH, WETH-LINK, etc are working the quotes are given below:

WETH-DAI, WETH-LINK

DAI-WETH, LINK-WETH

The above transactions are working fine but for transactions for WETH-USDT and UNI-WETH are failing for some reason, they directly display's transaction may fail, insufficient funds on meta-mask conformation screen.

Below are the quotes I am using,

WETH-USDT, UNI-WETH

The above two quotes are failing, even when I have the max allowance and enough token balance.

When I Click on Proceed any-way on meta-mask it displays error on ether scan. UNI::approve:amount exceeds 96 bits.

If any one finds any solution or explanation your help is really appreciated.

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  • When I click on proceed anyway, Ether scan displays error:
    – Ashish Negi
    Commented Nov 23, 2022 at 5:40
  • Hi Ashish, do you have the transaction IDs/etherscan links for these failed swaps? It would help quite a bit with debugging.
    – Megan
    Commented Dec 1, 2022 at 14:17

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