@bendurso After a lot of testing, I figured out why the index.html file wasn’t loading. Once I deleted all the UI components (panels, sliders, etc.), it finally worked.
One thing I noticed is that the standalone app now opens way faster—went from 5 seconds to almost instant. Makes sense since there are fewer elements to load, but it always loads fast on Mac.
So maybe the HTML file isn’t loading because of too many UI elements? The weird part is I only see this issue on Windows, not Mac. A couple commits ago it was fine, but I can’t roll back since I’m using the new AHDSR Flex now.