I'm just thinking this and hope I don't offend anyone. I think all those names that we think spell differently is because of a fault in our human brain, so to speak, that is all. it is no mystery. if it was about alternative parallel universe, that fate has changed into 2 different realities (which I think is the aim idea of the Mandela effect?? But I could be wrong??) then I don't think it would have to do with any errors in spelling.