4 Speed Shifter Not Catching Reverse

I suspect you either have the shims out of sequence, or the reverse loc-out is not releasing. Two of those shims look very similar..........
By the way;
IDK what you mean by "greased it", but that shifter is not sealed so it will fill up with gravel and dirt, and then you get to start over, but this time DO NOT Grease it,lol. They run just fine without grease.

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Yeah, just a little dab of grease on the shims to facilitate smooth movement. Nothing major.

I removed the reverse lock out rod/arm from this set up. Is there something inside the shifter that also needs to be adjusted?