Steps to reproduce :

1. Login to Confluence
2. Create the page
3. Upload the image by navigating to Insert >> Files and images
4. An overlap pop-up menu will appear, click on the Upload files button
5. Upload the following image attached Workflowcomposerjson2.png
6. Click on the insert button

Current behavior : We can see that the image is not being previewed as per the screenshot below :

The following error is noticed in the logs :

Caused by: class com.aspose.imaging.internal.Exceptions.SystemException: com.aspose.imaging.exceptions.ImageLoadException: Cannot open an image. The image file format may be not supported at the moment. ---> com.aspose.imaging.exceptions.ImageLoadException: Cannot open an image. The image file format may be not supported at the moment.

Expected behavior : It should render the image

Workaround : Drag and drop the image to the page in edit mode.