Repeatedly calling a no-op* function using asyncio.to_thread() in a QtAsyncio event loop causes the following warning to be repeatedly spammed to the console:

QEventDispatcherWin32::wakeUp: Failed to post a message (Not enough quota is available to process this command.)

MWE to reproduce the issue:

import asyncio

from PySide6 import QtAsyncio


def no_op(): ...


async def my_coroutine():
    while True:
        await asyncio.to_thread(no_op)


if __name__ == "__main__":
    QtAsyncio.run(my_coroutine())

* or very short - if no_op() is defined as:

def no_op():
    time.sleep(0.001)

the issue will still occur after ~20s