@davidkingham What does the following give you?
./launcher enter
rails c
SiteSetting.site_digest_logo_url(warn: false)
SiteSetting.digest_logo
The url seems weird https://community.naturephotographers.network//nature-photographers-network.s3.dualstack.us-west-1.amazonaws.com/original/1X/392476f143ac7f4a55f1ecd60612fea96e0f1f37.png