Sub Board move not showing on forum index board list - inside it shows

[Sudhakar Arjunan]

Dear Team,

Lets take a example, we are have 3 boards but are in default setting.

We tried moving board 2 - under / child / sub board of board 1 - done
When I tried to move board 3 - under / child / sub board of board 1 - done

But outside in forum index, only one sub board is listing instead of 2 sub boards on main board.

All settings looking to be intact and there in no difference between board 2 and board 3. But board 2 showing under sub board. But board 3 in not showing in forum index. Where as if we go inside the main board, it shows two sub boards perfectly and its post.

Any assistance is appreciated.