why do some scenes or devices respond better to "fast on" than "on"?

[someguy]

why do some scenes or devices respond better to "fast on" than "on"?  and others respond better to "on" than "fast on"?  I'm trying to figure out why a scene that passes the "scene test" with all devices "succeeded" but half of the items don't go on when I run a program that calls for the scene to turn "on".  

[lilyoyo1]

Shouldn't be a difference except for one, a dimmer would ramp up vs turning on a light instantly.  Providing system information and details about what you're experiencing could allow people to help you troubleshoot

[larryllix]

You may be developing noise that interferes with your Insteon communications. Without clear confirmations your devices may be doing retries.

Have you tried doing a restore on each device involved?

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