It happens all the time for me. I actually have a “green connection” and while I don’t know my BB ping, generally, for EU games, regardless of company/genre/servers, I get 20-70 ping, gravitating towards 30, which is quite solid.
It seems it might be a tick rate problem? It surely looks like. Because it’s not just that you miss, as if you would if you had a high ping, the game seems to simply “swallow” your arrow. For example, that big Montana is in front of his minions and I shoot at him, arrow somehow misses him, but also misses each of the robots. It’s as if it disappeared mid-flight - ie, wasn’t registered by the server. I tried to closely monitor both fps and connection and it happens when both are fine.
That’s why I kinda attribute it to tick rate. I mean, I didn’t do any research, tick rate might be fantastic, but not knowing it, I would assume it’s on the lower end of the “global tick rate spectrum”.
As for “hip firing”, it’s not that. Surely you seen it happen with big targets close on the screen. No hip fire could send the arrow like seventy degrees to the left and upwards. Also, the visual representation shows the arrow going towards where it’s supposed to go and then simply nothing happens.
There IS a rng in her shooting, hence the helix option for better accuracy, but try and shoot walls from a different distances and you’ll see that even a full “naked” Thorn hits pretty reliably, ie her accuracy is solid to begin with. Accuracy buff helix is reserved for reliably sniping fully aimed targets.
Another thing that leads me to tick rate thing, is the fact that this mostly happens when you are doing a peekaboo or similar thing. It seems that the game has problem with determining precise-and-fast poking, like it has problems with server seeing you where you are and what your arrows did and where they went if you do things quickly.
Also, you can try it with campaign missions. Go and run and jump all over the place and aim the most uncharged hip shot at someone mob’s head and you will more likely than not, score not only a hit, but a pretty reliable headshot.