TimAI2,
I couldn't find a button to click, or even see, on your ImagePickerTest.aia. The aia only showed a message announcing it's presence.
ABG,
Opening the ImagePicker.Image block either works correctly or does not appear, but does shows an error number. Clicking or dragging both work as expected, or not at all. I've found two ways to display the missing blocks. Wait awhile (can't tell you how long), open the project and see they have appeared. If you delete a piece the error number is reduced. The other way I can do this is delete the project, restart it, and see the missing blocks have appeared. Hope this helps.
Thank you both for your support and patience. Charles