`List of configured clients` only shows `Loading...`

[7wells]

Yes, and there were several problems with SQL. I will check further when I have more time.

PS @Bucking_Horn
I reduced the number of groups (besides Default) to 4, removed the . regex blacklist for the kids' devices that before were only allowed to query selected sites (exact and regex whitelists), and I will remove all clients that are in the Default group anyway and thus (to my understanding) do not have to be explicitly entered. If my conception is wrong, please kindly let me know. Thank you! [EDIT: it seems correct ]

Thus, the maintenance should be easier - also on the second Pi-hole instance that I will set up from scratch and manually add only the necessary clients (as mentioned above).

For time constraints, I will not be able to find out about the source of my problem (that ongoing Loading... display) but regard this as a "workaround".

PS2 (sorry for cross-posting!):
Thanks to your reply there, I have confirmation that removing most clients is adequate.

Client group management => Add a new client => Known clients: 2 unclear entries `pi.hole` and `localhost`

You probably should be aware that any device that isn't defined as a client would be filtered by the default group automatically. Commonly, the majority of clients would use the default group, so only those fewer clients that need different filtering are required to be explicitly defined via Pi-hole's group management.