Please follow the below template, it will help us to help you!
If you are Experiencing issues with a Pi-hole install that has non-standard elements (e.g you are using nginx instead of lighttpd, or there is some other aspect of your install that is customised) - please use the Community Help category.
Expected Behaviour:
[Raspberry Pi 4, Pi-Hold should block queries. I have some Groups labeled unblocked, but still always had good blocking in past for most clients.]
Actual Behaviour:
[No blocking. Used to work for a long time, but now nothing is getting blocked.]