Unsolved Vehicles uncontrollably ascend into space

I'm experiencing an issue, which I assume is coding related, where a modded vehicle will ascend into the sky immediately upon spawning. Pausing physics does not correct the issue, and if I spawn a different car, it starts however high up I got with the bugged vehicle.

This primarily happens when I'm messing around with jbeam, and I'm sure it's my own fault, but I would like to figure out specifically what causes it.

For example, I'm going through MorzBNG's modding tutorial and have followed his steps up to a point where he has nodes and beams created for a triangle. In the video, he spawns in the triangle and can interact with it etc. However in my game, I rapidly ascend into the sky.

If anyone can help pinpoint what is causing this I would really appreciate it.

My jbeam reads as follows:
{
"tutorial": {
"information":{
"authors":"Anolen95",
"name":"tutorial",
},
"slotType" : "main",
"slots": [],

"refNodes": [
["ref:", "x:", "y:", "y:"],
["tc", "tx", "ty", "tz"],
],

"nodes": [
["id", "posX", "posY", "posZ"],
{"nodeWeight": 10},
{"nodeMaterial": "|NM_Metal"},
{"collision": true},
{"selfCollision": false},
["tc", 0, 0, 0],
["tx", 1, 0, 0],
["ty", 0, 1, 0],
["tz", 0, 0, 1],
],

"beams": [
["id1:", "id2:"],
{"beamSpring": 430000},
{"beamDamp": 400},
{"beamDeform": 400},
{"beamStrength": FLT_MAX},
["tc", "tx"],
["tc", "ty"],
["tc", "tz"],

["tx", "ty"],
["ty", "tz"],
["tz", "tx"],
],
},
}

 

Agree with AgentY here, I was stuck on this tutorial for a while too at some point, but then I think it was a missing end bracket or something like that. I found it and it worked fine
--- Post updated ---
Found it!
In refNodes, y is referred to twice instead of y and z
--- Post updated ---
Also it’s ["ref:", "left:", "back:", "up:"], not x, y and z.