As a relative newbie I have just spent 2-3 hours chasing a ‘solution’ I now know I had seen the answer to before.
ie: Scriptcase DOES NOT like blanks in an image name, all the samples were working & displaying but my own images not, till I bulk name changed them and replaced ‘blanks’ with ‘_’ !!!
So it all goes to show that one is never too old to learn, so now its back to using a great product and dev environment.
Afaik php doesn’t like blanks in an image name. I never would recommend using spaces in any identifier 
That includes database field names…
Blanks (or SPACES) were always bad idea in any development since DOS. Microsoft introduced this feature in WindowsXP and since then it only creates lots of confusion for everybody. I always use “_” instead of the space.