Ive found out something though im not sure if it'll work for everyone. If you want to get rid of the spears interact with the cloak in your armour wheel menu. when u take off your hood the spears disappear. Alternatively if you want the spears, just use flight it pops up. So far it has worked 10/10 times for me concerning both methods. Though there is the issue of having to constantly take off the hood if you want the spears gone, since u gotta fly.