Yes, I'm sure, I sent bitcoin to this wallet. No, I didn't change the derivation path of the seed, because I don't know what it is)
Most probably you've left the dafaults, hence native segwit instead of legacy.
That means that in the past you had addresses starting with 1 and now they start with bc1.
Nothing is lost, you have to create a new wallet and in that step choose legacy wallet.