Hi there! I understand you're seeing a "fingerprint successful" message when you log in to the ebtEDGE app, but then the screen goes blank. That definitely sounds like something we can work through together.

To get us started, can you tell me if this happens every time you log in with your fingerprint, or was this a new issue that just began? Also, have you tried logging in with a username and password instead of the fingerprint to see if the issue persists?

In the meantime, here are some troubleshooting steps to try on your Windows device:

1. Restart the app: Completely close the ebtEDGE app and reopen it. Sometimes this resets the interface.

2. Update the app: Make sure you have the latest version of ebtEDGE installed. An outdated app can cause display issues.

3. Clear app cache: Though typical on mobile, clearing cache or temporary files related to the app on your Windows device might help if the app stores these.

4. Use fingerprint login alternate method: Try logging in manually with your username and password. If that works and shows the screen properly, the fingerprint module might be causing the glitch.

5. Check for system updates: Ensure Windows 10 is fully updated, as fingerprint drivers or biometric support sometimes depend on OS patches.

6. Re-enable fingerprint login: If possible, disable fingerprint login for the ebtEDGE app, then re-enable it to reset the biometric data.

If none of those resolve the blank screen, there might be a deeper issue with the app rendering after fingerprint authentication. Some users have reported similar blank screen issues after login and found updating or reinstalling the app helped1.

Could you please try these and let me know the results? That way, I can guide you further!