I am on Drupal 7.22
Panels 7.x-3.3
Views 7.x-3.7+2-dev (2013-May-06)

I am having problems with Views displaying content from fields.

I think it is similar to this problem

http://drupal.org/node/1025716

but I looked at the panel.view.inc document it already has the text of this patch so I guess it has been incorporated into the latest version.

I make a content type, add an image field or file field depending on the content. I make 1 field for every item I want to upload so I can manipulate them differently. I upload the images or files one to each field and they appear fine.

I make a new View (block) specifically for that image or file. I add that field. This displays fine and I can configure the field, change the formatter, image style etc.

I add this new View (block) as content into a panel region.
This displays fine and the configurations work beautifully so I have different images appear on hover or link to other webpages when they're clicked.

Then out of the blue the field stops displaying. The nodes are still there in their original content page, the files are still there in my site folder, the panel still registers the view as added, the new View is still there.
The field simply stops showing both in the views own preview when you edit and in the panel page.

I have done a complete re-install of drupal and tried the 2 available versions of Views but it keeps happening.