"Set Variable" don't work on prototyping

Hello 🐣, i currently work on a concept for a streaming app with variable and i’d like a tiktok slider type . i’m trying to make sure that on click on poster/video it’s possible to open a detail page but when i assign the “set variable” interaction to my “ID” variable it doesn’t work on the prototyping but if i type exactly the name of it, it works and i don’t know why.