Reason: Drawer window offsets are preventing the window from opening properly.
Solution:
Open XDAT editor. (for info, I'am using v1.3.8 )
Select your Interface.dat
Program Tabs > windows > Search > "QuestTreeDrawerWnd"
Select in right panel
From DefaultProperty > Change value of "size_absolute_height" to "447" (original value "421")
From Window Property > Find "drawerDirection" (dont change)
Change value of offsetX to 0 (original value "-2")
Change value of offsetY to 0 (original value "26")
File > Save.
Detail Info Window will now work properly.
For Skill Enchant Window
Program Tabs > windows > Search > "MagicSkillDrawerWnd"
From Window Property > Find "drawerDirection" (dont change)
Change value of offsetX to 0 (original value "-1)
Tested on clear H5 System.