hello. so this problem has me driving me crazy. i was building a replica of a Spacex Starhopper then when i wanted to do a test flight the craft began to turn and nosedive straight into the ground. when you find a soloution of how to fix this, email me or comment on one of my builds. thanks! my account is called stander.
The engines are slightly misaligned. Select an engine and then open the Translate Tool and compare their coordinates like this.