Parameter 17 not applying default value

Parameter 17 is set to default (11) which should keep the current level of dimming on the switches LEDs indefinitely. Yet, it seems this setting is being ignored. Setting to other numbers (0-10) will timeout as expected. What’s also weird is that the LED strip flashes the top LED as well. I have several switches that are performing this way.

I tried to capture this in a video. Here I’m increasing the brightness, and when I release the LED will revert to the condition I’m describing.

My switches are VZM31-SN being run in smart bulb mode with bindings. I’ve tried removing the binding to no effect. I thought maybe it was some effect being applied somehow but clearing the effects ( and issuing new ones) didn’t work to resolve either. Any ideas?

Factory reset seems to have resolved this.