I also tried to execute the second part of the check point from a different PC getting the same error message
Invalid transaction params: params specify an EIP-1559 trans
Hi, I opened the ticket #7900, 11hrs ago and waiting for assistance.
I tried already this morning after 7hrs from the first episode and Iām still having the same problem,
I click to proceed the 2nd step of the checkpoint to ETH
the system start processing for few seconds
MM does not open and the appears the error message