Having trouble launching the Attribute editor

I recently (2 February) migrated my steam installation from an HDD drive (drive letter D: ) to an SSD drive (Drive letter F: ). However, ever since the migration, I'm having trouble launching the Attribute Editor.

- I can launch the Tools application from Steam alright
- When I try to launch the attribute editor from the Tools, I get the following error:

"Error executing F:\Program Files (x86\Steam\steamapps\common\Company of Heroes 2 Tools\AttributeEditorXML.exe:
The directory name is invalid"

1) I verified that the path correctly corresponds to the AttributeEditorXML.exe path
2) When I launch the .exe file from outside Steam, I can't see any unit/weapon/etc properties

In order to do my "migration" I did the following steps:
- I uninstalled CoH2 & Steam (but not Tools)
- Created a new NTFS partition on the SSD drive (F: )
- Reinstalled steam
- Downloaded CoH2 & CoH2 Tools
- I didn't touch anything else anywhere

PS: In the meantime, does anybody know where I can locate the raw XML/whatever files that the game is using? I can read them using an external editor; we have the technology.