I think I found what exactly causes the problem - it's vertical redstone transmission tower. Build tower out of glass or half slabs. Then start attaching redstone clock generators into it, attaching new one at the point where redstone signal of previous stops reaching. After building and ena...
hopper redstone dust redstone dust solid block B solid block A Power the dust on top of solid block B, for example with a redstone torch to the right of it or with a lever on solid block B. Drop an item on the hopper. Power solid block A, for example with a redstone torch be...