PowerPoint macro does not see files uploaded in the draft

The pptx file does not show up in the powerpoint plugin. If I publish the page and try adding pptx macro again it's all working fine.

Steps to reproduce:

• create a page
• drag and drop a pptx file
• add PowerPoint macro (the added pptx file is not visible)

Expected result:

pptx file sure be visible

Workaround

publish page to see the file.