Characters going invisible during play mode in editor.

Today I’m making several characters follow each other. I have 12 characters following each other using nav mesh. As they are following each other some of the characters are invisible and then appear. As if its lagging on drawing them.

Any ideas on this. I was thinking maybe this could just be a editor thing to reduce resources?
I have a decent graphics card. Can’t imagine it can’t draw 12 characters fast enough.

I guess the issue doesn’t happen if im looking straight. So i guess it just happens when i move the came in and out of view of the characters. So its drawing slow.

What are some things I can do to speed up drawing?

Are you using occlusion culling? Maybe they are being blocked by occluders.

Thanks for the response. I disable occlusion culling and it’s still doing it

Here is a real short video showing the issue.

I’m just guessing:
Maybe the bounds box of the character is wrong.
Pause the editor and look at the bounding box of the characters. is it at the character’s location?

There was some bug where selecting “Update When Offscreen” causes the bound box to move away from the character:

Just to note. I’m using unity 5.6.1 P2
How do I show bounds in the editor?
I don’t see it in Gizmos

Edit: Oh i see what bounds means.
you have mesh bounds, collider bounds etc…
You was suggesting that the mesh bounds were not staying with the character right?

Ya i see what you mean now in the mesh component. The bounds seem to be fine. The characters display correctly in the scene view. Think its just the camera