I've been asking everywhere and yet to get the answer. When you import records\xpack\creatures\pc\femalepc01.dbr or records\xpack\creatures\pc\malepc01.dbr into your mod, you won't be able to use scrolls, interact with certain quests, the main ones mostly or open secret passage door. To fix the scrolls issue you need to open skillmanager.tpl using some text editor such as notepad++ and add the following variables:

Variable
{
name = "questTree"
class = "variable"
type = "file_dbr"
description = ""
value = ""
defaultValue = "Records\XPack\Skills\Quest Skills\QuestSkillTree.dbr"
}

Variable
{
name = "potionTree"
class = "variable"
type = "file_dbr"
description = ""
value = ""
defaultValue = "Records\XPack\Skills\Scroll Skills\ScrollSkillTree.dbr"
}

Variable
{
name = "potionTree2"
class = "variable"
type = "file_dbr"
description = ""
value = ""
defaultValue = "Records\XPack\Skills\Scroll Skills\ScrollSkillTree2.dbr"
}
For the sake of sorting I would recommend adding them to the skill tree group which is located in the bottom of the skillmanager.tpl

If anyone knows how to fix secret passage door issue, please answer. I am desperate writting here.