After further experimentation, I have come to an understanding regarding the possible cause of the bug.
Originally, all the characters were a single .scml file. Since that doesn't work for me, I asked the artist to separate them into individual files.
The original file (which now contains a single character "Starlet") works fine wherever it is placed.
The other files do not work unless they are in the same directory as the original file "Starlet Sprite".
Further more, deleting the folder containing the pictures of Starlet stops the other files from working even if the Starlet Sprite.scml file is present.
There appears to be a remaining link between the files and their original...
Vid showing a file working only in the presence of another file and stopping if the other file's picture folder is deleted:
https://drive.google.com/file/d/0B1Zccn ... sp=sharing
I hope this helps you identify the bug and fix it (or at least warn people against it).
Edit- here is the Starlet folder (.scml and picture sub-folder) in case you need it, Zaid can give you the original unified file (if he still has it):
https://drive.google.com/file/d/0B1Zccn ... sp=sharing
all works featured in this thread are the work of Zaid Mohammed Jawad and are copy righted to both me and him.