Inconsistent results with Font.GetCharacterInfo()

Ok, so, I feel like I'm going insane. I'm just recently upgraded to Unity 5.2 and I'm getting very inconsistent results with GetCharacterInfo().

I've been using it for a conversation system to get the width of my words so they preemptively adjust themselves as they display letter by letter and don't overflow the text box or auto-adjust mid-word.

I've started noticing inconsistencies with t$$anonymous$$s implementation, but it seemed to be working just fine in the past (it's also just possible I've been stressing it more recently).

So, I have t$$anonymous$$s block of code that hopefully explains my issue:

 for (int i = spewPos; i < currentTextSpew.Length; i++)
 {
     if (currentTextSpew[i] == ' ')
     {
         break;
     }
 
     bool result = usedFont.GetCharacterInfo(currentTextSpew[i], out currentInfo, fontSize, fontStyle);
     if (!result)
     {
         failedChars.Add(currentTextSpew[i]);
     }
     else
     {
         if (failedChars.Contains(currentTextSpew[i]))
         {
             print("A character that previously failed is now returning a valid result.");
         }
 
         foreach (char failedChar in failedChars)
         {
             result = usedFont.GetCharacterInfo(failedChar, out currentInfo, fontSize, fontStyle);
             if (result)
             {
                 print ("T$$anonymous$$s character used to fail GetCharacterInfo but now does not: " + failedChar);
             }
         }
     }
 }

In English, I'm seeing GetCharacterInfo() fail to return results for a specific character, but then correctly returning results for that character at a later point in time. If GetCharacterInfo() fails to return results for a specific character, it will continue to fail if the frame has not advanced, but after more frames have passed, it will eventually succeed again.

Am I doing somet$$anonymous$$ng horribly wrong here? Do I need to mess with font import settings to preload t$$anonymous$$s information? I'm happy to provide more specific info about what I'm doing if needed.

Any help at all would be greatly appreciated!