Images Showing as "Preview Unavailable"

[erik_unangst]

Hi folks, 

We are suddenly struggling with inserting images onto Confluence pages. They end up showing as "Preview Unavailable". 

Things we have noticed:

1. I will create a page and insert an image. Fellow coworker will navigate to the page and see "Preview Unavailable". Refresh doesn't resolve the problem for them. I will navigate away from my page and return to find the "Preview Unavailable" message. Refresh DOES solve the problem for me.
2. If we clone a page, the new page will have "Preview Unavailable" in place of all images AND the action of cloning the page will break the original page, resulting in "Preview Unavailable" for all of its images as well.
3. Using a custom, uploaded image as a banner appears to work at first, but when you navigate away from the page and back again, it disappears - refresh does not bring it back for either the page creator or other page viewers.
4. When navigating through the documentation for the Power BI Connector plugin for Jira (they Use Confluence for their documentation) I see this same "Preview Unavailable" on their pages. If I refresh their pages, then the image previews do render. See pic below. The fact that this behavior is present on an instance external to our own makes me wonder if this is a more widespread issue, or whether or not it might be related to my company's network in some way and how it interacts with confluence pages?

All of the above are being experienced by multiple users, on multiple different browsers.

Is anyone else struggling with this right now, or does anyone know of a fix?

[Hans Polder]

@erik_unangst ,

I haven't seen the behavior myself, but if it's reproducible, then definitely I would raise a support case with Atlassian (via https://support.atlassian.com > button at the bottom of the page). 

However, when I open the PowerBI documentation, I don't see the 'Preview unavailable' issue myself. So, it COULD be something on your corporate network/VPN (if that applies) that could be doing some blocking there. Have you tried reaching Confluence via a personal device that is not connected to the work VPN/network in any way?

[erik_unangst]

Thank you for your reply Hans! The issue appears to have gone away again. I wish I had thought to try to access our instance from one of my devices at home, outside of our network/VPN as you suggested. Next time this happens I will check.