PanickyMoth78 thank you for the mock code, I can verify it reproduces the issue. It seem that for some reason (bug) when the same function is called multiple times it "collects" parents, hence the odd graph,
BTW: if you want to see exactly what is passed to the step you can press on the step's full_details, and see the hyperparameter section.
I'll make sure we fix this bug in the next RC.