Attached Window - Click Image Not Working

[Nath (Nathan Smith)]

I’m automating RDP application and I’ve encountered an issue with the Click Image Activity, its not working and cant find the image, see the below sequence for details.

but if I place the Find Image & Click Image Activities in separate Attach Windows it works, see below sequence;

All the Attached Window have exactly the same selectors;

What is causing the Click Image Activity not to find image first sequence?

Any help would be greatly appreciated