We are using RadEditors with Image Managers that use a custom file dialog via FileBrowserContentProvider. The reason is that our images need to go through an approval process before they can be added to the content. Everything is working except when a new image is added.
When you click on the image manager icon the first time, it fires the ResolveDirectory() override in our code and all is good and displayed correctly. Now the users adds a new image that goes through our approval process (on another control on the page, not part of the radeditor). Now the user clicks on the Image Manager again, but the ResolveDirectory() override does not fire again (I put a break in my code to test). And thus the user does not see the new image and has to click the refresh button. Although this is minor, it is generating a lot of support calls from users.