12 vdc circuit 4 leads (one per floor) and 1 common ground. Input voltage from 12 vdc laptop power source. Each floor is split in 2. Total of 8 sections. With 12 vdc and also a different variable voltage (8.5-12.5) source results in same. It is sporadic and flickers in sections. One section at a time. Flickers about 5%of the time. The effected section dims or flickers. Even with only 1 of the floors connected.
Todd makes his building cores and floors with cardboard or similar material. Can’t really see where wires terminate. I have seen GRG mention filters. I am asking for insight or suggestions before the exacto comes out.