MCPE-104051] Hopper minecarts won't pickup items when more than one item type present - Jira
Hopper Minecart Speed Item Sorter : r/redstone
How to Build a Hopper Item Filter Minecraft Map
Minecraft Sorting System : 9 Steps - Instructables
Gold Hopper Concept, a innovative way to make sorting items more convenient (Images included) - Suggestions - Minecraft: Java Edition - Minecraft Forum - Minecraft Forum
Hopper Sorter - Create easy and auto sorting system! Minecraft Data Pack