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What are our next steps to resolve these errors?
If newly generated addresses aren't related?
That's unreproducible, means that whatever the corruption did to generate unrelated error, it can't be recreated.
Maybe scrambling a few bytes here and there but since corruption is mostly random, it'll be hard.
But take note that in P2PKH, there's a 1 out of 2^160 chance for an existing address to be generated by whatever corrupted your wallet.
In simple words, it's impossible to happen.