Flickering light with 2 in 1 in a 3-way no neutral.

[Bry]

@Stainz

After your comment, I removed the 3-wire from the Inovelli completely and tried every config:

Single pole, Single pole sine wave, 3-way with aux, 3-way with dumb switch with On/off mode & Dimmer mode

No matter what I did, I couldn’t get it to stop buzzing.

Have you tried, wired as a 2-way:

1. Factory resetting the switch?
2. Another switch, to rule out a defective switch?

If you can’t get the buzzing to stop wired as a 2-way, and you have factory reset the switch, I’m leaning toward either:

1. A defective switch
2. Your bulbs are not compatible

TBH, if you can’t get it working properly as a 2-way then there is no sense in even messing with the 3-way.

This is hard to run down because you have it working as a 2-way at one point, maybe?

Are these smart bulbs or dumb bulbs?