This option will show you a window with a summary of all buffers that are being saved out. Any potential errors will be highlighted in red. Review Settings tries to cover all potential issues when saving an image. It may not succeed in all cases, though.
If it reports no error, and you still have problems saving, please create a preset of the settings and mail them to us at email@example.com, we will update Review Settings to catch those issues as well.
This shows the about box of exrTrader, including the version you are using.