Apologies for the delay getting back to you. I know you’ve answered your question now but just to clarify that yes, we allow multiple sessions between the browser and apps. This was introduced to enable balance checks, making payments/transfers etc without disrupting the mining. Obviously there is no benefit should you start mining in both instances as there is a limit to 1 lottery ticket per account per block. And it isn’t possible to open 2 sessions of the app simultaneously.