Guess not, then.
You could compare the images in the ZIP file with the images the script is trying to flash and delete or comment out the script lines trying to flash images which aren’t there.
The overall size of the data still checks out compared to prior builds, so it could well be nothing is really missing, just that the partitions and what they contain got rearranged and the script didn’t get adapted accordingly, but I don’t know.
Pinging @Manoj … IMG-e-2.6.3-u-20241218455570-community-FP3.zip seems to fail to install via command line.