[Bug Report] `rl_games` workflow's `log_root_path` is not the absolute path when pbt is not used

[ozhanozen]

After the addition of pbt logging support, rl_games workflow's log_root_path is not the absolute path anymore, if pbt is not used. This breaks functionality in Ray, and potentially in other places.

Steps to reproduce

If you have a look at the output [INFO] Logging experiment in directory: ..., you will see that it is not the absolute path.

System Info

Describe the characteristic of your environment:

• Commit: 3a0db9d
• Isaac Sim Version: 5.0
• OS: Ubuntu 22.04
• GPU: 4090 RTX
• CUDA: 12.2
• GPU Driver: 535.129.03

Additional context

The error is due to the forgotten else condition:

IsaacLab/scripts/reinforcement_learning/rl_games/train.py

Lines 130 to 135 in 3a0db9d

	if "pbt" in agent_cfg:
	if agent_cfg["pbt"]["directory"] == ".":
	log_root_path = os.path.abspath(log_root_path)
	else:
	log_root_path = os.path.join(agent_cfg["pbt"]["directory"], log_root_path)

Checklist

• I have checked that there is no similar issue in the repo (required)
• I have checked that the issue is not in running Isaac Sim itself and is related to the repo

Acceptance Criteria

• log_root_path is the absolute path

[RandomOakForest]

Thank you for posting this and adding the PR. The team will review it.