Maybe it would, but I can't help you there. I can't even say if there was an identifiable "what".As I said, there is absolutely nothing wrong with people changing their minds. However, if they are now strongly asserting a viewpoint which is very different from one they previously expressed, it would be nice, and helpful, to know what changed their mind.
I can do nothing about any inclination you may have to consider me a liar when I tell you things.If they cannot give a plausible explanation for a major change in expressed views/opinions, some people are likely to regard their opinions as fickle, and hence not to be taken seriously.
I do not know how/when/why my position changed. I do not recall espousing what I clearly did decades ago, nor why I did.
If you will not accept that then I suggest a bit of introspection on why your instinct is to disbelieve what I tell you would be in order.