Wait they don't do across dimension move well yesterday my and @Constructl0n move a tainted node from the outer lands to the overworld i think it must have something to do with the world not being chunk loaded since the time i try alone before construct got on i was't able to move the node from overworld to outer land
I dont think that if you use Primordial pearl on it it will cure. Primoridal pearl will ONLY add every primal aspect to node by 1. So it wont cure.