This is for the first time that I am experiencing any issues with my Nokia 5. After the Android Pie update, there are ghost touches occuring at the lower middle part of the screen and it happens especially during typing and browsing through social media. Secondly, it's a very strange issue that I am facing with the fingerprint scanner; at times when the battery level goes below 5%, and the phone is rebooted at that point of time, all the fingerprints which were previously stored gets deleted from the device. I habe to re-register my fingerprint and when similar situation occurs, I face the same issue.
I believe, both the issues can be solved through an OTA update.