Hello, I have actually encountered a problem (maybe) related to the topic? I bought Scroll of Wizardy Enhance from market using bonuses - you can see history. After that i was not able to use (couldnt learn it). After the game was patched - it turned in to Scroll of Mana shield. Just added an extra screenshot to proove that i have not learned that skill. Hopefully Administration can track this behaviour. Cheers.