There is a post on the official forums that the enchanting nodes are not dropping blue (potency) runes.
In case you missed the official notice, if you were affected by the guild bank bug when Orsinium went live, all you need to do is put your stuff in the guild bank before Monday’s maintenance.
Missing Guild Bank Items: For anyone that lost items from stacks of 200 in the guild bank, your missing items will be reimbursed during Monday’s maintenance. You won’t need to do anything, as the items will appear in your guild bank after maintenance is complete. The only action you’ll need to take is in the event you’ve removed an entire stack of an affected item into your personal inventory or personal bank. All you’ll need to do is move it back into the guild bank sometime before Monday. For anyone that erroneously received more items in their guild bank and currently has stacks over 200, consider it a gift.
Check your guild banks. There have been several reports that items that were in stacks of 200 are now only 183.
The Kagrenac’s Hope set / Battle Resurrection is bugged and has been confirmed by ZOS.
I also experienced this “bug” just after I had crafted my Vr16 Kagrenac’s set and put it on. It seems to be a common link between all of us who have had the issue. We went from VR14 old gear to our new VR16 crafted Kagrenac’s and could tell something was not right….
I believe you may have nailed it, when we change gear it does not apply the [Battle Spirit] buff. Ever since coming across this thread I have swapped gear in an effort to test and because I was paranoid. Little did I know that is most likely what is causing it. The only counter to your theory is that when I crafted my gear in Bangkorai I put the gear on and then zoned into IC, so it may not be when you zone in.