My pet baby ant still follows me and teleports to me even when I place it in a pet house. When it is housed, its pet perk deactivates as normal, while it still follows me and teleports to me. When I try to interact with the pet baby ant, the onscreen prompts tell me I could call it to my side; when I do call it to my side, its perk activates.
So far, I've gotten the red baby ant (haven't gotten the other two baby ants)., so I am unsure if this issue also occurs with the other baby ants. This issue does not occur with the other pets (weevil, aphid, gnat), as they stay by their houses as normal.