Difficulty with Entity "Name" types

Hi everyone

I am trying to understand why, when as a user, I input a name to be captured as entity FirstName (data type "Name") I get inconsistent results.

Below are 5 names which I have tested with, using uppercase and lowercase first letters of the name.

1: "Daron" always seems to return a "No match" whereas "daron" is accepted as {FirstName}
2: "David" always seems to return a "No match" whereas "david" is accepted as {FirstName}
3: Both "Ashton" and "ashton" always seems to return a "No match"
4: Both "Tracey" and "tracey" always seems to return a "No match"
5: Both "John" and "john " are accepted as {FirstName}

Clearly there are inconsistencies in the results, but I can't find enough information to help me understand how to fix or get around the problem

I emailed support, but as part of the response it said “…The Name entity type in Voiceflow is designed to recognize common first names, last names, or full names. However, it might not always accurately capture less common or unique names.”

I’m therefore unsure why a common name like “David” would return a “no match” but lowercase “david” worked fine.

Has anyone experienced similar or have suggestions on how to overcome this problem?

Thanks