We have no user ‘true’ – that does not conform to our network id name scheme. I have not before seen this in the output from nginx_list. I attempt nginx_show --user=true, and it reports ‘can’t find user for true’. There are no processes associated with ‘true’
This was a bug IIRC because you’ve deleted users? You can check journalctl for an error message I believe under the nginx_clean unit. I believe it should have been fixed in 4.0.