Ql_rtos_event_send fails when notifying to a particular task with 5KB stack size and event queue size 10

Hi…When i am trying to send a task event notification using ql_rtos_event_send API, it is returning the QL_OSI_EVENT_SEND_FAIL error.
The statck size is checked and ensured sufficient.Queue for events is if size 10 and according to my application,its enough.I am able to send event notifications to other tasks though.

hello, could you tell us your current firmware version? many thanks~