How are you testing to make sure your 23 sp bonus is added, because addons like casterstats shows you with the 23 sp but its not counting.
The only reliable way from telling with the UI is to mouse over the wand section and it shows your spell damage. Have to be using a shadow damage wand to show accurately. The other accurate way of telling is to dot mobs after swapping around gear.
Both my pvp and pve set include the r10 helm & shoulders.
this is my damage after a relog
this my damage after changing gear to pvp set and back to pve
Once you've changed set pieces and have the missing 23sp it wont add until a relog, no matter how many times you change gear.
pvp set including r10 shoulders/helm after the swap to pve gear.
Relogging with pvp gear on
Changing back to pve gear restarts the cycle. After a relog just simply unequiping a r10 piece and reqeuiping causes the set bonus to vanish.
Either way its an annoying issue and i can't wait to get rid of these fucking r10 pieces. Makes me wonder what other set bonuses aren't working, Does bv set work, what about the ring set from ZG?