Error: Could not initialize EGL. and RuntimeError: Failed to initialize OpenGL

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Environment:

• ubuntu 18.04 mujoco_py==2.0.2.5

Found 3 GPUs for rendering. Using device 1.
libEGL warning: Not allowed to force software rendering when API explicitly selects a hardware device.
Could not initialize EGL
Traceback (most recent call last):
  File "meld/scripts/run_meld.py", line 1023, in <module>
    app.run(main)
......
File "/home/CDJ/testRL/meld/meld/environments/gym_wrappers.py", line 143, in _reset
    return self._modify_observation(observation)
  File "/home/CDJ/testRL/meld/meld/environments/gym_wrappers.py", line 125, in _modify_observation
    image = self._env.sim.render(**self._render_kwargs)[::-1, :, :]
  File "mujoco_py/mjsim.pyx", line 156, in mujoco_py.cymj.MjSim.render
  File "mujoco_py/mjsim.pyx", line 158, in mujoco_py.cymj.MjSim.render
  File "mujoco_py/mjrendercontext.pyx", line 45, in mujoco_py.cymj.MjRenderContext.__init__
  File "mujoco_py/mjrendercontext.pyx", line 113, in mujoco_py.cymj.MjRenderContext._setup_opengl_context
  File "mujoco_py/opengl_context.pyx", line 130, in mujoco_py.cymj.OffscreenOpenGLContext.__init__
RuntimeError: Failed to initialize OpenGL

The images is the code from mujoco_py/mjrendercontext.pyx.

• Even I export GPUS=1 and CUDA_VISIABLE_DEVICE=0 , still Using device 1. Since using env.sim.render("mode=rgb_array"), I also set export LD_PRELOAD=''.
• I've been suffering from this problem for days. Does anyone know how to modify or set it.
• I wonder where the info Using device 1 come from.