Here's a workaround- Go to setting>>apps>>three dots on top>>special access>>optimise battery usage>>click on "apps not optimised" button and select "all" (this will show all the apps in the device)>>search for com.samsung.android.biometrics.app.settings (start typing in search bar, the app will get highlighted)>>turn odd battery optimisation for com.samsung.android.biometrics.app.settings>>close all apps and restart the device>>wait for at least 60 seconds>>unlock your phone, lock it again and now try fingerprint sensor.
If this method doesn't work, search on youtube for how to efficiently register biometrics in f41.
If you find this answer helpful, accept this as solution. (Took a lot of time to write this much😅) Thanks
For good results of fingerprints neat and clean finger and try to still make sure one finger to enroll 3 time and one more different finger to useful I hope you update regularly software for good results thanks
In case the issue still occurs. Please register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback > Error report/Ask questions).
