Oh, an ugly bug with #OrcaSclicer, and adaptive slicing, and tree support. With adaptive slicing, the tree structure is too small.
Without adaptive slicing, the tree support reaches the painted area.
Btw., also #Klipper runs in calculation issues (the max layer amount and current layer is not in sync with variable layer size), but this tree error in Orca is a more certain bug.
Do we have the same issue in #prusaslicer?