I am a new to OpenLCA. Now I am making a LCA of banana pseudo-stems compost. Banana pseudo-stems are as the input in the system. When I create the compost process, I can't find the flow of banana pseudo-stems. So I create a new flow for banana pseudo-stems (product type), then banana pseudo-stems can be as the input flow in the process. Then I create the product system, but in the modle graph, I can't find the provider for banana pseudo-stems. This means that banana pseudo-stems are not included in the environmental impact analysis. Anyone know why is these? Sincerely, thank you.