Not all game objects on list scaling.

[Horibe]

I used a spline to place trees along a path but the whole map needed to be scaled up.

I scaled everything up and the locations were fine but the scale of the trees remained the same.

I tried to scale up the trees under Input Game Objects as seen below:
   

Unfortunately it didn't scale up all of the trees:
   

I am using:
Unity 2018.3.6f1
Curvy 5.2.2

Can you please assist?

Thank you very much.