With text analysis selected, when Mollom is unsure if my comment is spam or not I get the word verification message, but the CAPTCHA form does not display. If I have the protection mode set to just CAPTCHA, the CAPTCHA form displays and works fine.
It seems it is correctly recognising a comment that requires a CAPTCHA fallback but not displaying the CAPTCHA form.
My settings are:
Protection mode: Text analysis
Text analysis checks: Spam + Profanity
Text fields to analyse: Title + Comment
Text analysis accuracy: Strict
When text analysis identifies spam: Automatically discard the post
The site is in German.