Zigbee light switch - empty 2nd gang causes flicker - no neutral

I’ve got a Moes/Tuya 2 Gang light switch. No neutral available or in use. Only the left/1st switch is connected to a light. The right is disconnected.

When both switches are off there’s no issues or flickers. Works fine.

My plan was to use the 2nd/right switch to activate something else via Home Assistant. This works no problem.

The issue is that when the 2nd/right/empty gang is turned “on” it causes the light attached the the 1st gang to flicker/flash if it is off.

Can this be solved with a capacitor? If so, what wiring and what type of capacitor?

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Hi, did you find a solution? I have just experienced the same problem.