Lichess Glitch?

I found this weird glitch where in atomic, the blue "best move" arrow let the white king move right into the black king. I don't think I can make a screenshot, but if anyone knows how this works, that would be nice! (Or maybe it's an atomic rule I don't understand?)

This was in the analysis board, to be clear.

In atomic, kings can be next to each other, mainly because if the king takes the other king, they'll also explode. So they can't take each other if they move next to each other.

Ohh, thanks!