Steps to Reproduce:
1.Download the test model JSON.

2.Add it to any custom block model, texture any.

3.You will find that the model does not load properly.

Observed Results:
In 1.18.20.23 beta and 1.18.10, when the X-axis of the size "cubes" in the block model was greater than or equal to 7, the entire model file became unworking.

Expected Results:
Normal model loading