Thanks, everyone
But now I’m worried since the mempool accept test failed. It says mandatory-script-verify-flag-failed (Signature must be zero for failed CHECK(MULTI)SIG operation). Is there any way to fix this without having to re-sign?
Like others said, there are basically two likely scenarios here. Either the transaction was signed with faulty software or you got a transaction that never was meant to be valid.
Can you share how you got it and what the deal is?