Level Sync

I'm assuming it is a bug that allows other jobs to cast Stoneskin (when set as an additional action from CNJ/WHM) when synced below level 34, but CNJ/WHM cannot cast Stoneskin if synced below level 34.

Why is it that a Paladin (or any class other than CNJ/WHM) synced to level 16 is able to cast Stoneskin, but a White Mage synced to level 16 in the same dungeon, cannot?

I imagine there are many other additional actions that suffer from the same issue.

This has been bugging me awhile, as I play both Paladin and White Mage and Stoneskin is a big deal for both.

Hopefully this bug can be addressed now that it has been brought to the attention of the development team.

Not a bug.
Any ability that is pulled from another class is available regardless of what level your current class is at.
So yes, a Gladiator at level 1 does have access to Stoneskin, while CNJ/WHM can't use it until level 34, and won't be able to use it when level synced.

The same applies to crafting classes.

I don't remember what the dev answer was when it was brought up last time, but it's considered as working as intended.