Allowing to execute programs from ~/Library is a very bad idea.User can
paste any app in that folder abd execute it.Is it not a purpose of
pernitted app list to limit allowed apps?
We did experience same issue.What I did was:1. Downloaded macOS Sierra
on iMac 20152. Copied image of Sierra from iMac 2015 to iMac 20172. On
new macOS Sierra 2017 created new partition (Data)3. Booted to recovery
and selected newly created partition...