Eaton 18spd Intermittent Problem

[MSPOIRIER]

I know there has not been a lot of action on this one but I am grateful to the ones who posted help but I will continue with updates in the hope to help someone who is having a similar problem.

UPDATE: the problem is continuing to happen a time or two a day and some days not at all but so I guess the next step is to remove the aux. I do notice I can drive by NOT preselecting the gear and it will never grind If I move to neutral and switch range. Does this help anyone come to a conclusion on the problem? Thank you. I will update as I continue to work through it.