I can't close UE4

i think i have a big big bug in UE4

Sometimes UE4 stops and is not responding, so i go to task manager, END TASK but i can’t close it,. So, i go to the details to close the process and i can’t either. it shows me the message “The Operation could not be completed” and i need to force shutdown the PC everytime that it happens… :confused:

Versión of UE4 4.26


Same here!