2000 Blazer Courtesy Lights Fuse
 

Okay, here is what seems like an odd one with my 2000 blazer.

If I put a fuse in the courtesy lamp spot, all lights work as expected except the rear tail lights (tail lights for sure, not brake lights) stay on :(

If I remove the fuse all lights work as expected, except of course there are no courtesy lights.

Any help/guidance is greatly appreciated!!

Thanks,
Dan