pace->activeSpace=spaceID, Space->Start animation
This will restart the animation every tick so it will always be on the same frame and appear to be stopped. The other two sprites animate normally because the animation speed > 0. When you invert it the reverse happens, the other two have their animations reset every tick.
You'd need something like:
+System: On start of layout
- Space: Stop animation
+Space.spaceID = activeSpace
+System: Trigger once
- Space: Start animation