I appreciate you replying in an attempt to help. I hope you or someone can actually provide some useful information that can fix this.

She does not have an active quest for the main story line. Only ones that have been completed thus far.

The last quest she completed in the log for the main story line quest was "The Gridanian Envoy".

The next quest should be "Call of the Sea"... but when you approach Baderon at the Drowning Wench he does not have a quest to offer.

This is the same bug that was reported by myself and multiple others during Beta Phase 4... and was supposed to have been fixed... I saw it in the list of "fixed" bugs from Phase 4... but it's still happening and she cannot access the quest.