Hello. the bug works with the following and blocks: workbench / anvil / stove / cartographer's table / smokehouse / barrel / stone carver / whetstone / smelter / Ejector / Dispenser / loom / Hob / loading funnel / llama / enchantment table / chest / chest trap / donkey / shalker / lighthouse. how to cause a bug: open any block that has an ability to open, and jump up at the moment of opening. the character will jump even after opening this very block. detailed video: https://youtu.be/FhoRZXMqVQo