Sparse rewards curriculum not working

[Idate96]

The new trenches do not seem to allow any agent to complete. previous checkpoint with

    # levels = [
    #     {
    #         "maps_path": "terra/foundations",
    #         "max_steps_in_episode": 300,
    #         "rewards_type": RewardsType.DENSE,
    #         "apply_trench_rewards": False,
    #     },
    #     {
    #         "maps_path": "terra/trenches/easy",
    #         "max_steps_in_episode": 300,
    #         "rewards_type": RewardsType.DENSE,
    #         "apply_trench_rewards": True,
    #     },
    #     {
    #         "maps_path": "terra/foundations",
    #         "max_steps_in_episode": 300,
    #         "rewards_type": RewardsType.DENSE,
    #         "apply_trench_rewards": False,
    #     },
    #     {
    #         "maps_path": "terra/trenches/medium",
    #         "max_steps_in_episode": 300,
    #         "rewards_type": RewardsType.DENSE,
    #         "apply_trench_rewards": True,
    #     },
    #     {
    #         "maps_path": "terra/foundations",
    #         "max_steps_in_episode": 300,
    #         "rewards_type": RewardsType.DENSE,
    #         "apply_trench_rewards": False,
    #     },
    #     {
    #         "maps_path": "terra/trenches/hard",
    #         "max_steps_in_episode": 300,
    #         "rewards_type": RewardsType.DENSE,
    #         "apply_trench_rewards": True,
    #     },
    # ]

but sparse should work but to be tested.