Arcane Ritualist does not allow for the selection of a ritual, nor can the feat be taken more than once.
Arena weapons from the Arena Training fighter feature are sharing all bonuses instead of just feat attack and damage bonuses.
Athasian Spellshard cannot be enchanted as a tome.
Campaign settings editor is not implemented.
Certain shared rules elements, such as Channel Divinity, display all possible child powers when viewing rather than just those for the appropriate class.
Character sheets are not user customizable.
Display setting changes are lost when switching between shops in the Marketplace.
Editing the same character from two different locations can cause unexpected changes.
Epic destiny choice cannot be postponed past level 21. If you meet the pre-requisites for the choice after level 21, you will be unable to select it.
If you have more than one familiar, such as by Second Familiar, the constant benefits of all are applied instead of just one.
Importing custom characters with house ruled items from Character Builder Classic is not supported, and may have unexpected results.
Item sets not supported.
Lost Kin background has all skills associated with it instead of only class skills.
Making multiple copies of the same character will cause the character's name to exceed the expected character name limit.
Mark of Scribing doesn't allow a language to be retrained.
Marked for Death ignores the prerequisite of being able to mark a foe.
Masterwork armor is not renamed for a Dark Sun character to the Dark Sun equivalent names.
Only two character sheets are available.
Popup dialogs won't display properly on certain screen resolutions.
Properties and powers of a magic implement take effect incorrectly when the character is not proficient in the implement.
Remembered Knack allows any skill to be selected instead of the specified limits.
Secondary/additional backgrounds cannot be selected.
Some feats did not have summaries on the character sheet.
The "Report a bug" page popup may be blocked by browser settings.
The calculated stats for powers include only attack bonus and damage. The builder does not calculate critical hit information, secondary attacks such as for dual-wielding powers, healing, temporary hit points, summoned creatures, nor damage types.
The Fighting Shield doesn't trigger features that key on wielding a weapon such as swordmage warding.
Thri-Kreen Weapon Master not giving damage bonus to two-weapon fighters.
Trusted Spellcasting allows the selection of powers with no 'miss' line. Powers that have a 'miss' line but do not deal damage on a miss are not being allowed.
When you are prompted to choose one of your existing elements, high-level characters may have too many elements to fit in the space provided, resulting in some choices unable to be selected.
Bozak Draconian ability Sinuous Agility does not allow for the correct ability adjustments.
Artifacts from Dragon 422-430 and Dungeon 213-221 not implemented.