There is a small window during stopping when tasks have been add to the transfer_requests queue, but never transfered to the active_transfers array and causes the fallowing error: GTask 0x7f2c4400e930 (source object: (nil), source tag: (nil)) finalized without ever returning (using g_task_return_*()). This potentially indicates a bug in the program. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/9060>