We are playing on the steam platform, currently version 1.4.1.4512rel. We also encountered the same problem with bug invincibility.
The first time I encountered it was when using a odor eliminator. We placed the odor eliminator in a deciduous tooth jar in the uptown area. We filled all the insect parts. The bugs came, but after killing about 6-8, There are invincible bugs. We can't hurt them, but they can attack us normally. We can attract their hatred and defend against them normally, but we just can't kill them. We tried it again and the second time it was the same.
Then today there was a revenge war of mosquitoes. They attacked our house. There were probably more than ten mosquitoes. In the end, 1-2 were invincible. Just like the above situation, we couldn't attack them. This happened after we tried to force quit the game 4 times.
How to solve this problem in the end is that after a certain time, about 5 minutes, these bugs suddenly disappear, and then our defense base will be judged as the winner.
