"Error executing tool test: object NoneType can't be used in 'await' expression"

[zudsniper]

Receiving this error when attempting to use asyncio's Context at all in this test tool:

@mcp.tool()
async def test(message: str, ctx: Context = None) -> str:
    """Simple echo test function."""
    if ctx:
        await ctx.info(f"Echo test: {message}")
    return f"Echo: {message}"

I'm testing using mcp-inspector and on fastmcp v0.4.1. Anyone have any ideas?