yep. that bug is done by viewing a profile and switching quickly between archived and normal heroes, eventually it bugs out and you see your archived where ur normal ones were. I can't replicate it on my machine, its just too fast. So I think it has something to do with client lag, sending serveral requests from the server and getting them back in different orders or something, where the last one you sent was a request for normal heroes, but the last one you got was archived. Not sure what causes this bug, will need to look into it.
I would guess it would be tied to connection speed, rather than your PC's specs. Try to introduce some network lag and see if you can get it to work.
I can, but I don't want to run an AV in the first place
I'm as likely to get a virus as Bush is to shoot himself in the head, intentionally.