Help > FAQ > Drag & Drop not working
This happens if you explicitly run Soundpad as administrator, while the file explorer is run in normal user mode without administrative privileges. Windows prohibits drag & drop in such scenarios. It also happens when you update Soundpad from within Soundpad. After the update is completed, Soundpad is run by the installer, which has administrative privileges. Just restart Soundpad, so it is run in your user context and drag & drop should work again.