Power block LED's showing a dim light during derrick operation

Classic Toy Trains Forum
1

I have a Lionel Oil Derrick powered from an auxiliary CW-80 transformer. I have track power blocks powered by a ZW with LED’s to show on or off. The accessory and the blocks are wired to a common bus. When the derrick cycles up and down I get a faint flicker in the block LED’s with each up and down cycle. What could be the problem? Should I change the wiring method?

Thanks

2

My first thoughts are is the Zw and older one. Then my thoughts turn to are the two transformers in sync with each other. I’m not an electric whiz so I may be way off track here.