Blank screen after launching app, only when done through VS

I have a WPF project, using net 8. Whenever I run the program, either in Debug or Release, the main window appears, with its content visible. But, after like half a second, the window becomes blank. However, if I run the release build's .exe, outside of VS, I don't get the issue. The content of the window seems to still be there, as I can click on the exit button (where it should be).