I had this problem last time we had the lucky star event and it gets worse if you find one and click it , the promo will get bigger and cover even more from the hunt screen and it stays there for 3 days (at least i learned my lesson and not going to repeat that mistake).
Would be great if there was some way to disable it (an option in the character->personal just like the one to hide your helmet) or make it so that it's not a link and you can click the area in hunt screen to pick resources.