Serverless Endpoint using official github repo Stuck at "Waiting for building"

Hi, I'm deploying a serverless endpoint using the official github repo runpod-workers/worker-template. I just fork this repo and add one line in dockerfile "RUN pip install --upgrade pip && pip install uv" WITHOUT any other changes. Build completes successfully with no errors in the logs. However, during the testing phase, the status remains at "Waiting for building" indefinitely. No test logs are generated. After about an hour, the process cancels automatically. I've tried increasing the max workers to 2 and allowing multiple GPU types, but the issue persists. Could someone assist me in identifying what's causing the worker to hang during initialization?