I updated my Pi-hole 5.x to development-v6 yesterday.
Now the dashboard is only showing IP's not DNS names as in 5.x where all DNS names were correctly shown for both Top and Blocked clients.
All client names are visible/readable on DHCP page but not on dashboard...
Any setting I should change to make this work again?
This shows that - in theory - local name resolution does work as expected. Also your resolver settings are as default per your debug log. Unfortunately, this means we need to dive a bit deeper, but that won't be a problem.
Please start off with
sudo service pihole-FTL stop
sudo pihole-FTL --config debug.resolver true
sudo rm /var/log/pihole/FTL.log
sudo service pihole-FTL start
After a few minutes, go to /var/log/pihole/FTL.log and check for messages beginning with DEBUG_RESOLVER. Without knowing what is causing the issue, I cannot really say what to look out for but maybe you can simply provide some of those lines here and we can check together. You can also send them to my via a private message if you prefer this for privacy reasons.
The fix has passed review process and is now included in development-v6. You should go back over there to continue receiving further updates. Thanks for confirming that this PR solved the issue for you. One could only assume that this confirmation is what suddenly made the review process going again