That looks like a blown G50 shifter bushing- the part pressed into the lower portion of the shifter housing that the shift rod goes through.
See large left side conical black bushing in this photo.
https://www.pelicanparts.com/More_Info/JWSTG50BUSH.htm?pn=JWST-G50-BUSH
This happened to me when all of a sudden tons of slop hit the shifter like something failed. Got a great tip here on re-installation if the shift rod that’s in my post history or I’ll find if this is it.
Good luck