Quick answer: Drag Animator State asset directly into Instructions. Set Min Activation Time. Default Camera as fallback.
Animator changes from Idle to Run. StateDrivenCamera should switch to ActionVcam. Doesn't. Instruction’s state name was typed by hand and didn't match.
The Fix
StateDrivenCamera (CM):
Animated Target: Player.Animator
Layer Index: 0
Default Camera: IdleVcam
Instructions:
[0] State: Run Vcam: ActionVcam Activation Time: 0.1
[1] State: Idle Vcam: IdleVcam Activation Time: 0.1
Drag the AnimatorState asset from the Animator window directly into the State slot — no typing, no case mistakes.
Verifying
Animator transitions; cameras follow. With typed mismatch: stays on Default.
“Drag state. Activation time. Cameras follow.”
Related Issues
For Impulse channel, see channel. For Confiner2D, see Confiner2D.
Drag state. Camera follows.