I work so I can... SQUIRREL!
As you see from this image, there is a spring that belongs there. There is also a small hook on the side of the interlock latch (pink part) that the spring attaches to.I got the shifter out and I can't tell that the pink thing is broken anywhere, but there is no spring attached and I did not see one anywhere, in the area of the console or shifter. After I took the shifter out, I hooked the lead back up, that controls the switch (or whatever you call it and I had to manually release the shifter, to get it to move at all and then I had to move the pink piece, to be able to go through the gears. I wondered if there was a fuse for that, but doesn't appear to be. IF anyone has a wiring diagram, for this, so I can tell for sure where I should get power, I can then determine if the switch is bad or maybe not getting fire from the brake light switch.
The small hook is usually what breaks.
This is a pic of a unique fix that someone did using a small cotter pin and washer.
Reference the earlier video I posted to open the shift assembly. I'm betting that this is the problem.