How to reproduce it :

• open resource explorer
• add a new file
• select a zip file (select :Extract files and folders from archive in the selected folde)
  > the content of the zip file is well added.

Now,

• In a content, insert a link to a shared file
  > a window with the resources explorer appears
• click on the link at the bottom of the window : "Click here to insert a file in selected directory"
• select the same zip file than before (select : Extract files and folders from archive in the selected folder)
  > A message appears : "The file you tried to insert was correctly added but is not visible as it has a wrong type"