"my ground model" not work

I have a problem with "my ground model" after recent game updates.
I have a folder "groundmodels" with the file "myGroundModels.json" in the main directory of my map.
Until now, the file has been read by the game.
Now it is not read. As a result, for example, I have mud like asphalt.

Is it possible to fix it somehow ? BeamNG Drive loses much without this.
I used: "Celar cache" and "Safe mode"

( I do not know English well, forgive me for mistakes )

/*******************************************************************************
This is an example of how to add per-level custom groundmodels
*******************************************************************************/

{
"goo" : {
"adhesionVelocity" : 1,
"staticFrictionCoefficient" : 0.4,
"slidingFrictionCoefficient" : 0.00001,
"hydrodnamicFriction" : 0.07,
"stribeckVelocity" : 3.0,
"strenght" : 1.0,
"fluidDensity" : 1200,
"flowConsistencyIndex" : 1600,
"flowBehaviourIndex" : 1.2,
"dragAnisotropy" : 0,
"defaultDepth" : 0.1,
"collisiontype" : "MUD",
"skidMarks" : false,
"aliases" : ["Mud_bagno"]
},
"goo2" : {
"adhesionVelocity" : 1,
"staticFrictionCoefficient" : 0.4,
.
.
.

 

I do believe the groundmodel .json is being written over with each update.