Open Studio not finding HB or sim folder

After working fine previously the Open Studio component, v1.9.4 (the latest version), would not run out of the blue.
We tried to uninstall all LBTs and reinstall, I believe through pollination.
After reinstalling everything there’s still an issue with Open Studio:

  1. Solution exception:
    Failed to import honeybee_energy:
    Cannot import name to_openstudio_sim_folder

Does anyone know how I can fix this issue?