Yes, it is. The only thing that I could think of was that there might be some strange effect from the 230V to 12V transformers on the lighting circuit, which is connected to the "after light switch" part of the switched live.
@Dammit started
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Yes, it is. The only thing that I could think of was that there might be some strange effect from the 230V to 12V transformers on the lighting circuit, which is connected to the "after light switch" part of the switched live.