This is strange indeed. I would've thought it was one of the items you took from the In-Between-World that didn't allow saving. Please, keep in mind -> those items there are not in the real game plot.

Where did you get all? From this world or partly properly via playing the game? The In-Between-World is merely for exploring because the Larians didn't figure out that gamers would enter it. IIRC, Barnie "Livingstone" recommended using an extra save for this world.
Kiya

BTW, I have never been there myself - I'm too scared to corrupt my saves.

Hmm, if I understand correctly, you took all from this world, correct? Then I understand the Dragonarmour thingie -> you get it pretty late in the main game plot -> after having been in the Castle, saving Zandalor, retrieving 6 Council members (Dwarf) and solving a subquest for Sir Patrick.

I can't understand the map restriction though - they can be obtained without a quest, save one -> the one from Mpenzak has to come via speech option <img src="/ubbthreads/images/graemlins/think.gif" alt="" />