boycalledjames

Exact same issue here unfortunately; false restart of Steam Big Picture at seemingly random intervals requiring an Alt+tab to get back to BigBox, very odd! Scrolling through menus or starting up a game seems to trigger it most frequently on my end, though I've it happen if BigBox is left idle after launching through Steam Big Picture also. Not found any solutions or answers as to why this may be happening, but I've used Big Picture/BigBox in tandem for years without issue so it appears to be a recent issue.