So here's a version that's fixed once and for all.

PetTurtle how much energy are the trees supposed to have? You set them at 100e in the featuredef but ZK divides this value by 10. I have made features with less than 50e exempt from this multiplier as some ZK maps already have small energy values that are appropriate for ZK. With 100e I don't know what your intention was.

See: https://github.com/ZeroK-RTS/Zero-K/commit/3a0ef8cf167aa4d56716a89e47b74db902c558dc