If you are a Nokia 7 Plus user running Android P beta on your unit, you are strongly advised against installing the latest June security update (if you haven't already). Reason being, those who did are reporting serious issues post update. Specifically, users say the 1.3GB update is basically a downgrade package, and so it results in applications force closing and even device crashing in some cases. Even the rollback package on the Android P install page is of no use because the June update has a newer time stamp. Of course, users of beta builds are expecting to face bugs, but...
Source: https://www.gsmarena.com/june_patch_downgrading_android_ppowered_nokia_7_plus_units_to_oreo-news-31682.php