Anybody else seeing strange character sets within text field in the MacApp?

I have a text field that I type a JSON string into.. something like 

{

"foo" : "This is foo", 

"bar" : 77

}

When I use parseJSON.. I got an undefined error.. usually meaning it is a malformed json string.   I copy / paste it into https://jsonformatter.curiousconcept.com/ .. and why YES.. it says 

So there is something going on with how it is creating the " character.   I left the original quotes aournd foo and type over the others while still on the above referenced webpage.. and BOOM.. "bar" is OK.. but foo is still wrong!  So it is the quotes! 

So Ninox MacApp is having some issues..