Cannot delete file from Skydrive

Win8.1 preview x86:

I have some stubborn files on Skydrive that cannot be deleted. Something similar to this thread.

These files cannot be deleted in the "modern" app:  no any error message, the file just stays there.

In Windows explorer: when I delete without recycle bin (shift+del), again the file stays there and no error messages.

When deleting to recycle bin: the file moves to the recycle bin, but then cannot be purged from there.

All this after installing the recent "Update that improves the stability of SkyDrive in Windows 8.1 preview"...