CMake fails in online environment without LbEnv sourced

When LbEnv is sourced, things work. However when it isn't, it fails like so:

-- Delegating to default toolchain at /home/user/projects/stack/../toolchain.cmake
CMake Error at /home/user/projects/toolchain.cmake:1 (include):
  include could not find load file:

    /data/toolchain.cmake

To be seen if and why this is specific to Online.

Thanks to @dcampora for reporting