and its installation folder to your antivirus exclusion list. Account Registration (Lumion 12 & Older)
If you've just opened Lumion only to be met with a frustrating "Invalid License" or "License Key is Invalid" popup, you aren't alone. This error can stall your workflow right when you're ready to render. Usually, this isn't a sign that your license is gone, but rather a communication hiccup between your computer and Lumion’s activation servers. lumion invalid license fix
Before we dive into the fixes, it's essential to understand the possible causes of invalid license errors in Lumion: and its installation folder to your antivirus exclusion list
The following methods can be used to fix the Lumion invalid license issue: lumion invalid license fix