Unbelievable Sawmill Failure During Father-Son Project...Why did this happen?

What happens here

This project details the process of milling rough-cut lumber, specifically 2x4s and 2x6s, from pine logs using a portable sawmill. The video highlights the preparatory steps of delimbing and bucking logs, operating a mini skid steer with a grapple for log handling, and troubleshooting equipment malfunctions, including a broken window on a utility vehicle and an oil leak on the sawmill engine. The ultimate goal is to produce lumber for building a shop.