#1 Edited by smcn (926 posts) -

Possibly related to this, but since it's a different issue I'm making a new thread.

PNGs inserted into the editor from a gallery aren't actually displaying the image--I can move it and add a caption, and the image will display normally after posting, just not in the editor.

JPGs and GIFs are not affected.

EDIT: Through more investigation I discovered the .png extension is being replaced with .jpg in the editor only.