Spring RTS Engine

Some of the maps I've had since ver 0.75b2 which were working fine in ver 0.75b2 have stopped working since I changed to ver 0.76b1. Upon closer inspection, the maps that have broken all include a "/features/all worlds/someFile.tdf" file inside the .sdz or .sd7. The infolog.txt seems to corroborate this as the line "Initializing map features" is the last line executed before Spring crashes.

I have a five year old computer, Athlon XP 2500+, 512Mb RAM, Windows XP Pro SP1, GeForce Ti 4200.

This is the contents of the infolog.txt right after the crash.

what maps?

Oops, sorry, I should've included which maps (kinda important information). From the top of my head I can remember Barren, Small Supreme Islands, Tropical, Red Planet Remake V2, Road to Rome V3, The Cold Place Remake and The Cold Place Remake V2. I opened up the .sdz/.sd7 of those maps and iirc they all had a "features" directory in them.