Character is missing/ghost

Hello, I am still learning on how to use blueprints in Unreal Engine 4. Sorry if this is a stupid thread.

I am trying to make a multiplayer game which is at a very very early stage right now and i am just learning stuff for now.
I have 2 levels which are MainMenuLevel and ThirdPersonExampleMap. I launched two client to test the multiplayer. The first client is hosting which is fine. Then the second client can join but here is the problem. The second client spawn at the Network Player Start but there is no body. Just ghost. I can move normally but I can fly around.

Here is the tricky thing. If I launch both client in the ThirdPersonExampleMap, both of them works ! Even the second client is working fine. The character is there and both can be seen.

If you need extra information, do reply! Thank you for your help.

Bump. If you can’t understand or need more info just reply! Need your help thank you.