Redaction: Custom patterns are not respecting case sensitivity

I've created a custom redaction pattern to look for capitalized words.  However, Acrobat's redact tool is not respecting case sensitivity.  So it therefore matches every word in the document, not just the capitalized ones.

Example:

        (\b)([A-Z])([A-Za-z]+)(\b)

That should be matching a word that starts with an uppercase letter, and then has any mix of uppercase and lowercase letters after it, before the next word break.  Acrobat is ignoring the character class, and matching all words.

Is there is some way to turn off case-insensitivity in the redaction tool, please let me know where it is, as I do not see a way to set it either as a preference, or via the RegEx pattern.

If this is a bug in Acrobat, please pass it along (assuming their are any Adobe employees reading).

Thanks for any advice on this.