[steely]

Welcome!! and thanks for the noob pic! We love 'em.

The car looks simply awesome and I am digging the rear spoiler/tail. (Can't tell if you have one on the front)

I am not too familiar with the shifter for your year, but some of the parts under the shifter, and the coupler which is located under the rear tunnel access can wear down.

The cars were built by hand and you can take it apart for some inspection and get it back together without issue if you feel compelled not to wait for repair parts. Just don't shift it while you are doing it.

I would recommend do a search here, checking the technical pages for your model year for this issue, or getting a Bentley manual to check out the recommended fix.

Congrats, welcome and good luck.