Klaus Sack didn't spawn in my world

I made a world specifically to kill klaus. Day 30(I began looking for the deers and the klaus sack somewhere between days 20-25): I found the deers in one of the decidious biomes but the sack is no where to be found. I explored both decidious biomes and the mozaic one multiple times then I just gave up and used the console to check if there's something wrong with my world. c_gonext("klaus_sack") didn't work so I used c_announce(tostring(c_countprefabs("klaus_sack"))) instead and it showed me that there are no klaus sacks in my world. World settings are all on default and the mods used are: "Show me (Origin)" and "Simple Health Bar DST". I know the klaus sack cannot spawn if there's something blocking it, but like its pretty dumb how there are 3 whole biomes where it can spawn but there's a chance of it not spawning because of a tree or something like ??? Can you guys please fix this or at least tell me why it didn't spawn? Attached: a picture of the map.