Issues adding seat bolt back in the rear seat

Hello: I recently added a sub box in the back of my 2022 Tacoma and need to take the read seat out to add the box. However now when I reinstalled the back seat I cant add the back bolt in the middle bracket. This is a tight area. Has anyone had this issue? Any advice will help. All other bolts are secured.

 

Maybe loosen all the other bolts up and then try it?

 

Adding on, If that does not work take all the bolts out and start with the one you are having a issue with.