Because a galaxy appears on the KLWP production screen, but when I opened the phone, nothing appears.
It looks like the image is only sitting in your editor’s cache, but KLWP failed to actually download the new file for the live wallpaper. That’s why you still see the galaxy in the editor while the screen is blank.
Try this:
Test the URL: Copy the direct image link from your Flow and paste it into a browser. Does it even load?
Simplify: Try to put the direct URL into the Image path field without using Flow/Globals temporarily to see if it works.
Clear Cache: Clear KLWP cache in Android settings. If the image disappears from the editor too, then your Flow/WG formula is definitely failing to fetch the new data.
Looks like a network or source error, not a KLWP
bug.