Luban preview 3d printing started from the printer

hello everyone,

Anyone knows why I can’t see the ongoing 3d printing from my snapmaker when the project is launched directly from the printer and not from luban ?
Luban is connected to the printer and i can manager enclosure for example, but even if i load the 3d model which is currently printing and load g-codes into the workspace, luban doesn’t show me where the ongoing printing is (no preview) ?

Which is strange, because if i launch the printing FROM luban than the printing preview works.

any idea anyone ?