This issue only applies while working with Zynq-7000 devices in the 14.3 Impact GUI.
Flash operations will be inoperable after assigning a new file to an existing indirect flash programming icon.
This is a known issue in the 14.3 release of the tools.
To work around this issue, delete the existing indirect flash programming icon before assigning a new file.
After removing the icon, a new image can be assigned and the flash operations will be functional.