You could try restarting your computer first, and if that doesn’t help, uninstall and reinstall the Figma desktop app, sometimes that clears up issues. Also, check if your antivirus or firewall might be blocking it, and make sure your Windows system and graphics drivers are fully updated. If it’s still not working, you might want to look at the log files since Figma support could ask for them if you end up reporting the issue.