Ran P2ATC day before yesterday in MSFS 2020 and it worked great! Program will not start since yesterday. I start MSFS 2020 first, load plane on airport, start FSUIPC7 and then start P2ATC, shows percentages loading and once it gets to 100% program shows up on taskbar as a white screen but clicking on it does nothing and it won't show up in MSFS 2020. Emailed Dave yesterday but haven't heard back. HELP! TIA