You may find that your course logo is missing in HTML5 output if the following scenario is true:
- You created your presentation and added the logo to your course player.
- You installed Update 2 for Articulate Presenter '13.
- You published your course.
This issue was corrected in Update 3 for Presenter. To prevent it from occurring again, download and install the latest version from the link in your product confirmation email or get it here. After installing Update 3, remove the logo from your course player, insert it again, then republish your course.