I have a flag exit deny, enabled on my arena's region so players cant leave the arena, but when they die and go to spawn they cannot move.....anyone know how to fix this?
Try removing your exit flag and just worldediting barriers around your arena. They're invisible and would work the same.
Ah, we'll have you tried just closing off the arena with something? ...or (if your WorldGuard version allows) set a region flag for allow-spawn?
Make sure any plugin is not overriding the spawn position (Plugins like essentials-spawn, multiverse, any other spawn teleportation plugin).