When setting a filter on a lane splitter, loader, etc, some items are not listed

the ones i can see missing are
- Hot Copper Cable
- Hot Iron Stick
- Hot Iron Gear Wheel
- Hot Low Density Structure
- Hot Pipe
- Hot Pipe to Ground

i'm unsure about the following (due to not having the tech yet)
- Hot Holmuim Plate
- Hot Tungsten Plate

They are all working for me. Might be a mod incompatibility for you.

That's possible, i'm using AAI industries that may change some of them. However, it doesn't changes the Iron Stick recipe, but it does lock it behind some other tech.

The fix is to always make them appear, even if the normal variant isn't researched yet. It clutters the UI a bit in the early game. I'll do it and wait if there is any negative feeback about that.