diff --git a/instructions/README.md b/instructions/README.md
index c43ac40c6..12c699911 100644
--- a/instructions/README.md
+++ b/instructions/README.md
@@ -44,7 +44,7 @@ apt-get install -y python3-apt
 | `rollout-max-context-len` | `32768` | max context length in a session |
 | `rollout-temperature` | `0.6` | temperature |
 | `advantage-estimator` | (see script) | `on_policy_distillation` / `grpo` |
-| `kl-loss-coef` | `0.01` | kl loss weight |
+| `kl-loss-coef` | `0.02` | kl loss weight |
 
 
 
diff --git a/openclaw-opd/run_qwen3_4b_openclaw_opd.sh b/openclaw-opd/run_qwen3_4b_openclaw_opd.sh
index 4624f4a38..05b546891 100644
--- a/openclaw-opd/run_qwen3_4b_openclaw_opd.sh
+++ b/openclaw-opd/run_qwen3_4b_openclaw_opd.sh
@@ -32,7 +32,10 @@ export RAY_num_heartbeats_timeout=60
 
 SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" &>/dev/null && pwd)"
 SLIME_ROOT="$(cd -- "${SCRIPT_DIR}/../slime" &>/dev/null && pwd)"
+MEGATRON_ROOT="$(cd -- "${SCRIPT_DIR}/../Megatron-LM" &>/dev/null && pwd)"
 source "${SLIME_ROOT}/scripts/models/qwen3-4B.sh"
+cd "${SLIME_ROOT}"
+echo "Current Working Directory: $(pwd)"
 
 HF_CKPT=${HF_CKPT:-/absolute/path/to/Qwen3-4B-Thinking-2507}
 REF_LOAD=${REF_LOAD:-${HF_CKPT}}
@@ -169,7 +172,7 @@ ray start --head --node-ip-address "${MASTER_ADDR}" --num-gpus "${NUM_GPUS}" --d
 
 RUNTIME_ENV_JSON="{
   \"env_vars\": {
-    \"PYTHONPATH\": \"/absolute/path/to/OpenClaw-RL/Megatron-LM/:${SCRIPT_DIR}:${SLIME_ROOT}\",
+    \"PYTHONPATH\": \"${MEGATRON_ROOT}:${SCRIPT_DIR}:${SLIME_ROOT}\",
     \"CUDA_DEVICE_MAX_CONNECTIONS\": \"1\",
     \"OPENCLAW_EVAL_MODE\": \"${OPENCLAW_EVAL_MODE}\"
   }
diff --git a/openclaw-opd/run_qwen3_4b_openclaw_opd_topk.sh b/openclaw-opd/run_qwen3_4b_openclaw_opd_topk.sh
index 6f7e6d13f..848b3b72a 100644
--- a/openclaw-opd/run_qwen3_4b_openclaw_opd_topk.sh
+++ b/openclaw-opd/run_qwen3_4b_openclaw_opd_topk.sh
@@ -32,6 +32,8 @@ export RAY_num_heartbeats_timeout=60
 SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" &>/dev/null && pwd)"
 SLIME_ROOT="$(cd -- "${SCRIPT_DIR}/../slime" &>/dev/null && pwd)"
 source "${SLIME_ROOT}/scripts/models/qwen3-4B.sh"
+cd "${SLIME_ROOT}"
+echo "Current Working Directory: $(pwd)"
 
 HF_CKPT=${HF_CKPT:-/absolute/path/to/Qwen3-4B-Thinking-2507}
 REF_LOAD=${REF_LOAD:-${HF_CKPT}}
diff --git a/openclaw-rl/run_qwen3_4b_openclaw_rl.sh b/openclaw-rl/run_qwen3_4b_openclaw_rl.sh
index 2effaec26..cbd9fbaec 100755
--- a/openclaw-rl/run_qwen3_4b_openclaw_rl.sh
+++ b/openclaw-rl/run_qwen3_4b_openclaw_rl.sh
@@ -33,7 +33,10 @@ export RAY_num_heartbeats_timeout=60
 
 SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" &>/dev/null && pwd)"
 SLIME_ROOT="$(cd -- "${SCRIPT_DIR}/../slime" &>/dev/null && pwd)"
+MEGATRON_ROOT="$(cd -- "${SCRIPT_DIR}/../Megatron-LM" &>/dev/null && pwd)"
 source "${SLIME_ROOT}/scripts/models/qwen3-4B.sh"
+cd "${SLIME_ROOT}"
+echo "Current Working Directory: $(pwd)"
 
 HF_CKPT=${HF_CKPT:-/absolute/path/to/Qwen3-4B-Thinking-2507}
 REF_LOAD=${REF_LOAD:-${HF_CKPT}}
@@ -173,7 +176,7 @@ ray start --head --node-ip-address "${MASTER_ADDR}" --num-gpus "${NUM_GPUS}" --d
 
 RUNTIME_ENV_JSON="{
   \"env_vars\": {
-    \"PYTHONPATH\": \"/absolute/path/to/OpenClaw-RL/Megatron-LM/:${SCRIPT_DIR}:${SLIME_ROOT}\",
+    \"PYTHONPATH\": \"${MEGATRON_ROOT}:${SCRIPT_DIR}:${SLIME_ROOT}\",
     \"CUDA_DEVICE_MAX_CONNECTIONS\": \"1\"
   }
 }"