gotenberg: HTML to PDF rendering fails with 'rpc error: Printing failed (code = -32000)'

When I send a significantly large payload of HTML (about 800kb) that contains a lot of images (say ~3-4 per page, 250 pages in total) - rendering fails with the following error message:

{
    "level": "error",
    "msg": "cdp.Page: PrintToPDF: rpc error: Printing failed (code = -32000)",
    "op": "xhttp.htmlHandler: xhttp.convertSync: printer.chromePrinter.Print",
    "time": "2020-09-22T18:04:50Z",
    "trace": "s1azQwaNSYBE6zK3y5R7VhstCYbPtrix"
}

and

{
    "level": "debug",
    "msg": "[0922/180450.372244:ERROR:print_render_frame_helper.cc(1889)] Printing failed.",
    "op": "stderr.google-chrome-stable.--no-sandbox.--headless.--disable-dev-shm-usage.--font-render-hinting=none.--remote-debugging-port=9222.--disable-gpu.--disable-translate.--disable-extensions.--disable-background-networking.--safebrowsing-disable-auto-update.--disable-sync.--disable-default-apps.--hide-scrollbars.--metrics-recording-only.--mute-audio.--no-first-run",
    "time": "2020-09-22T18:04:50Z",
    "trace": "system"
}

Is there anything I can do / tweak in the environment variables to mitigate this? I’ve already increased the RPC buffer without success. System is running on AWS Fargate, 2vCPUs, 8GB of RAM.

Expected Behavior

Rendered document is returned.

Current Behavior

Rendering fails with HTTP 500.

Your Environment

• Version used: 6.3.0
• Operating System and version: Docker container running on AWS Fargate 2/8GB