Using ladybugtools and lands plugin in the same definition

I don’t know why, but I have troubles using lands and ladybugtools in grasshopper at the same time.
For example, I generate a “lands terrain” object for a project site in and want to get its boundary curve in grasshopper to make a solar enveloppe.
The problem is :

  • when I launch rhino and gh first, my lands terrain component is empty, regardless of the fact I previously internalised the input in the component.
  • when I launch Lands then gh, the ladybug python fails to import in my definition.
    Do you know how can I solve this please ?

Hi - What happens when you launch vanilla Rhino and then run a Lands command (e.g. laOptions). I suppose that that also causes the “ladybug python fails to import” the definition?