Not so much a technical bug as it is a design/ user experience flaw.
When starting up a game, the default mouse icon presumably gets downloaded from the site, along with the assets required for the HUD. Thing is, sometimes I want to tab out, or click on a button. (“Play Game”, go to menu options to turn down music/ graphics)
The mouse appears invisible, since the icon asset for it hasn’t been loaded, and I can’t see where it is; I have to rely on instinct/ mouse hover animations to determine its location until it pops into existence.
This is extremely frustrating and a relatively simple issue to fix, I presume