Is there any character like that?

[ReneZ]

Is there any character in the VM that is generally thought as 1 character but some people believe it to be 2 distinct characters with very subtle differences?

Perhaps one of the best examples is the character Sh .
The curl on top of this character can take on many different shapes, and it can also be more to the left or more to the right.
One possibility is that these are handwriting variations.
On the other hand, Glen Claston strongly believed that these represent several different characters, and he based his complete transliteration of the MS on that.
You can see the various different shapes he distinguished here:
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See at: 2, 3, 5, !, #, %, + .

On the other hand, people who try to treat the Voynich MS text as a simple substitution cipher will sooner or later realise that this does not work.
Very ofter they try to fix it by assuming that a single Voynich character can represent different plaintext characters.
In this case, this is not based on variations in the Voynich characters. They just choose the one or the other that seems to make valid words.