just another proof
transaction already confirmed in network but in gate io NO
You could have given a little bit more explanation instead just sharing screenshots that are in french. By the way, I saw this warning on CMC when it comes to this new POW ETH, can this maybe cause the issues you are having with Gate?
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Regarding Gate, I have a couple of close friends that are using that exchange frequently and with serious amounts (withdrawing/depositing tens of thousands of dollars) and none of them ever complained about it.