Cinemachine camera falling through the ground after reopening

Hey Guys,

I'm having trouble making my cinemachine camera follow and aim at a target. I had been successful playing my scene many times before, however after closing and reopening the camera now doesn't follow and drops through my geometry. I have tried deleting the camera and recreating it, but I'm still having the same issue.

Have any of you experienced anything similar/know how to fix?

Currently using unity 2019.3.0f3 with Cinemachine 2.4.0
Attached pictures as reference...

Thanks in advance

 

Fixed this issue.

I didn't delete the general post processing volume from my scene.

 

Hey Xavier. Could you please elaborate on your solution this issue please. I am fairly new to unity and am not too sure what you mean and where to find post processing. Thanks!

 

Is there anyone who can solve this problem, it's quite tiring but I couldn't find it. my camera drops off the stage momentarily and comes back out. I added a collider to the floor. I added collider to the camera. If it falls below 0, I wrote a code to make it 0 again. I made the max vertical movement 0 but it still doesn't work.

 

Do you have a Rigidbody component on your camera? That's not typical, and would explain a camera "falling" on game start.