i kept pine base rodents aal lthe tiem with no problem. You said the mother was a bumble bee , that meand the genes for a spider is cared over post a pic of he snake you make have a low end spider and if that the case the wobble is part of the spider morph toss back. I picture of the snake will tell us if it a spider or a norma l that having issues. it also possible that the snake can surive the toxic effect of the cedar oils..

I also suggest possible check yout setup as it possible the uth over heating and cause the possible neor issues.. ( there can be other cause Than the rodent being kept on cedar). I hear story of people were they treated their cats/ home and almost kill their snakes due to the chemcials used..