We found that after the actual jumping action is performed with the jump button,
attempting a Glaive throw without releasing this jump button would result in failure.
We also confirmed that if the jump button was released at least once, the throw was successful.
I uploaded video showing this behavior
https://youtu.be/jVtPcnqarsM
The 4th and 5th throwing are consistent with this issue, indicating that the throwing are unsuccessful.
Please check it.