I'm going to post this here first before posting it as an actual bug in case I'm just blind and missing the obvious. I've found 128 of 130 walnuts. The 2 I'm missing are the 2 from the top of the volcano. But they aren't there! I've been to the caldera several times. I've tried chopping the bushes, using the golden scythe, watering the bushes, everything I can think of, but I can't get those 2 walnuts. I've checked my save file code, but I can't find where it says that I have or haven't found those 2 nuts. Any help would be appreciated. Thanks.
Found the answer in the PC Bug forum. Someone had posted the code for all the walnuts, I just needed to update my save file.