So special abilities that increase the return on treasure searches are not affecting pumpkin returns at all. For example, both the Adventurous Explorer and the Bold explorer have a +50% increase to returns. A short search yields 2 or 3, which by account should become 3 and 5 (sometimes game rounds down high amount to 4) and it has behaved this way in previous events. However, pumpkins are returning with only 2 or 3, the base amount with no multiplier. The special skill loot shovel is also not being applied. I send my adventurous on long searches for convenience, and the base returns are 5 or 10. Unfortunately that is all I get. It should be 8/9 or 16/17 (base +50% to make 7/8 or 15 and shovel adds another 1 to low amount and 1/2 to high amount). But I get nothing.
It isn't just the percentage either. The Scared explorer is supposed to give four times the return in exchange for its four time the time cost. However, it is not giving x4, just the base amount. So a 25 hour medium search is giving 3 pumpkins, and I know that it gave the four times in all the previous events as I tend to check their returns specifically as to see if I got any of the good bonuses, like premium days or books from their loot.