Chrome process remains after close in Celery task

I'm using Playwright-Python to generate PDFs inside of a Celery task. This works great, except the chrome process sticks around afterwards, even when browser.close is called, and with sync_playwright used as a context.

Interestingly, the process appears to get properly closed when running this locally in Linux, and macOS, but in production, running inside a Docker container + Celery task, it does not. The node driver process is properly cleaned up.

Curious if anyone has any ideas about what might be going on, or if there's further debug logs that could be enabled.

Thanks.

with sync_playwright() as p:
    browser = None
    try:
        logger.info("Launching browser")
        browser = p.chromium.launch(args=["--font-render-hinting=none"])
        page = browser.new_page()

        page.on("console", lambda msg: logger.info(msg.text))
        browser_error = None

        def on_pageerror(err):
            nonlocal browser_error
            browser_error = err

        page.on("pageerror", on_pageerror)

        logger.info("Loading template in browser")
        page.goto(f"file://{template_path}", wait_until="networkidle")
        logger.info("Exporting as PDF")
        pdf_bytes = page.pdf(print_background=True)

        if browser_error:
            raise RuntimeError(
                f"Browser error while generating PDF: {browser_error}"
            )
    finally:
        if browser:
            browser.close()