This comes down to two bugs:
1. Order Adept appears to apply level 5 and level 10 theme features at level 1. Even though the features are set to level 5 and 10 respectively. Other Themes do not do this
2. The level 5 class feature is incomplete with regards to spell handling.
http://hl4e.cryptoknight.org/index.php?topic=86 (http://hl4e.cryptoknight.org/index.php?topic=86)