How to make Oleana appear in Crown Tundra?
Solution 1:
You have meet all the requirements needed in order for Oleana to appear. However, based on information from various articles (here, here, and here), Oleana's appearance in the graveyard appears to be a random chance.
It would seem a majority of plays will simply get her to appear on their first try. If she does not appear, all three of the articles I have linked state that she will eventually appear after attempting a few days.