If I remember correctly, LTspice 24 v24.1.* screwed around with (messed up) AKO.? Since you are using v24.1.5, those errors might be a side-effect of that.
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You could run an experiment (probably a DC sweep) to see if it picked up the NJ20 model, or if it fell back to the standard NJF model with defaults.
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Andy
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