I just found out that I'm getting this issue in regular DOSBox and DOSBox-X as well. I tried the VGA and HDMI outputs of the system and it happens in both outputs. I also tried a different monitor and my TV (directly and through an AV receiver) and still it does this. I'm using Windows 11 as the OS. I noticed that when it was connected to my TV via my AV receiver, when it did the 5-second blackout when loading up DOSBox Staging, the receiver blinked it's display like it was doing an HDMI handshake. The audio continues (if there is suppose to be audio during that instance) during this 5-second screen blackout. This also happens when exiting a game in DOSBox and returning to the Windows desktop GUI. I have installed the latest graphics drivers for my GPU through Windows Update. This system is a PowerSpec B686 desktop that came with an MSI H610M-G DDR4 Wi-Fi motherboard.