An individual screen thumbnail within the Application Map can indicate problems or incompatibility between the defined identifiers and the screen image attached to the screen. Such problems are indicated by a red frame around the specific screen.
Possible problems:
Incompatibility between the defined identifiers and the screen image attached to the screen. This can happen as a result of creating a screen and then manually changing an identifier.
The screen suits the screen image, but there is a screen which is more suitable or identical to the screen image. Look at the name of the screen which is on the screen image and check that it suits the current screen. Note that the name which is on the screen image indicates how the server identified this screen image given all current screen definitions.
See Application Map for more information.