The images in Sense Server are stored a little differently. In Desktop they are copied to a folder location and in Sense Server they must be updated to a Content Library.
All you need to do is upload the images into the content library and they will be available for use.
To accomplish this, from sense server QMC, select content library.
Then, Upload you images. (There is only one library by default.)
Once your images have been uploaded, you can add them to your application and then re-publish.
I had tried this last week but didn't work, that's why I posted this, I tried yesterday again as you suggested and it works, I can see the thumbnails for each sheet and the images inserted as text/image objects but what is not working is the main thumbnail for the app and if I put a background image in the text/image object. I see the same behavior with 2 different apps.
kevincase,i my case i create a specific library that contant a list of images,i edit the security rules to be visible for all users,but when i want to add a file in the App(in the hub),i cannot find my library,i just find the library by default,
Below what i made,
I think there may be an issue with your security rule.
I created a test content library named KBC Test and uploaded an image for testing. I then created a simple rule the only granted read access to myself.
By doing this, I can test to make sure I have access to the contents and can read the contents.
You may want to delete your current rule and create a simple rule to test. After this can be verified, you can build upon the simple rule.