Issue: [4.1 Alpha 3] Upload New File page missing vw-attach-upload-ctrls for new wiki installation

I've recently installed a fresh copy of VW 4.1 alpha 3 build002 on a new XF2.1 installation. For this installation, when I click the "Upload New File" sub-navigation link, this loads the page: /wiki/?do=create&itemtypeid=21

On this page, I only see the regular page editor without the upload form row. This is despite the fact that the page title says "Upload New File".

I also checked the template editor (/wiki/?do=create&itemtypeid=29) and this works as expected with the code editor instead of the standard Froala editor.

Permissions for the user...
XF (usergroup):
View attachments to posts
Yes
Upload attachments to posts
Yes
VW (usergroup):
Can post new attachments?
Yes
Can edit existing attachments?
Yes
VW (area permissions):
Can post new attachments?
Not Set (Yes)
Can edit existing attachments?
Not Set (Yes)
VW (area settings):
Can Contain Content-Types
Any Type

Meanwhile, on an XF2.0 test installation that I've been using to test VW4.1 since alpha 1, I can see the upload form row when creating a new attachment. Edit: The XF2.0 install is currently running VW 4.1 Alpha 2.