I also have this question. Farmland cannot smoothly connect with grassland and can only be matched with sandy land. Currently, I can only configure the first layer of sandy land tiles, the second layer of arable land tiles, and the third layer of grassland tiles. The logic of arable land is to remove the third layer of grassland, as shown in Figure 2, instead of directly adding arable land tiles on the basis of grassland, as shown in Figure 1. If I have any problems using it, please let me know