Dimmer causing lights on different switch to flicker

Dimmer causing lights on different switch to flicker

Dimmer causing lights on different switch to flicker
Dimmer causing lights on different switch to flicker
2025-02-28 00:24:27
Model: KS225  
Hardware Version: V1
Firmware Version: 1.1.1

My Kasa dimmers seem to be causing undimmed lights, on a different switch but the same breaker, to flicker. It's inconsistent, but most prominent when the dimmed lights are between 85% to 99%. 
 

We thought it might be a loose neutral in the box, but we had that checked and it was all good. Are these defective dimmers making too much noise on the neutral line? 

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