Hi, My Environment is 
- Windows 8 with Skydrive for PC (Modern and Desktop)
- Office 2013 (32-bit)
- Skydrive for iOS (iPhone and iPad)

Right now, I don't have problem to work with Office 2013. it can create, open and save normally.
the problem is when I want to access via Skydrive (Web) including Office Web Access and Skydrive for iOS (iphone and iPad)

1. File can be download normally via web 
2. I can open file to view via Office Web Access 
3. I can open file to edit via Office Web Access --> Edit in Word (Office 2013)
4. I can't open file to edit via Office Web Access --> Edit in Word Web App. it display (Sorry, this document can't be opened for editing)
5. I have same issue with Skydrive for iOS. It unable to download and open to view.

What's happened with my Skydrive (because my second access is working properly and also unable to open shared file in this accout)