That's actually a good question, but the answer is no. Since the script files (scripts.rpa) and the images (chaptername.rpa) are not located in the same archive, it is actually possible to have the script files but not the images or vice versa, so just in case I ask for both
Usually I have two projects, one with the android code and one for PC, but I did change a lot in the script files in the last update so I just copied the pc versions chapter script files into the android / lossy one and forgot to change that small simple line of code to the appropriate image format :-\
p.S.: And since I'm used to "try" to catch every possible error in any way I just did it like that with the condition being both, the player has to have the script and image file else it won't start the next chapter... besides this way the players could delete the image files they don't need anymore (earlier chapters) to free diskspace, but they'd still have the script files and then it would throw a massive error if they ever tried to start a new game again