Interesting. I assume that you have the table and zip file with the exact same name in the tables folder as shown below
C:\Games\Future Pinball\Tables\Medieval Madness 1.03.fpt
C:\Games\Future Pinball\Tables\Medieval Madness 1.03.zip
The only other things I can think of (and I am guessing) is:
1) You have the FizX 1K ball zip file saved to the Future Pinball BAM folder (C:\Games\Future Pinball\BAM).
I have tested this condition and BAM uses the zip file in the tables folder and not the one in the BAM folder (at least it works that way on my PC). You might try removing the FizX 1K ball zip file from the BAM folder temporarily and see if it fixes the problem.
Another thing to try is to temporarily save the zip file for this table as "default.zip" and add it to the BAM folder. You won't want to leave it there because other tables would use the color DMD and won't look correct.
2) You are using an AMD CPU or GPU.
AMD processors are well known to cause issues on Future Pinball, especially AMD GPUs. Unfortunately, i don't know of a fix if you are using one or both of these.