yes, but now theres an actual grab entry in the history - you made sonarr grab it and it recorded that in the history. as there are no other grab entries it proves that sonarr has not been grabbing anything, something else has.
warning - the changes below presume you wanted sonarr to grab new files and process them. that you do not have other software doing that part and you just wanted sonarr to import them for you.
in sonarr under settings download clients edit the nzbget object and check what the category value is set to. its probably “sonarr” but it could be anything, including empty - note this value down (and let me know what it was).
i dont use nzbget so im not sure if anything in there needs to be updated to handle a new category but take a look and see if you have anything setup to handle that category i asked you to note down above, if you do then rename it to “sonarr-v4”
in sonarr under settings > download clients edit the nzbget object, change the category to “sonarr-v4”, and save it.
those changes should mean that if something else is grabbing stuff then sonarr will ignore it. sonarr will only process the files it grabs.
if you start getting stuff piling up in nzbget that has a category other than “sonarr-v4” then you do actually have other software running that is grabbing the files so you will need to find and stop that.