Working with the Danish translation of the new HotPot module (what a great effort - thanks!) I have discovered that HotPot is using a mod_quiz text string, allowreview, that is greylisted in AMOS. I just assume that you want to use allowreview from mod_hotpot instead (which is greylisted too, but I have notified David Mudrák so I am sure that he will fix this soon). The string is used in the Access control section of the module settings page.
BTW would you prefer that I have used the tracker?