Error when loading, but only with Edge as the default browser

I was getting an error when loading in practice or a race, but it would stop at 15-20%. A few seconds or so later, I would load into the sim. It never stopped me from doing anything, just a bit disconcerting.

Not sure why it's happening, but it only occurred when Edge was set as default browser. Once I made Firefox the default, no more error.

So, it's fixed, but does anyone have an idea why that would be happening?