@steveits
I disabled many things of pfBlocker NG (which is the latest version)
I think my guess was right, the rules were not correctly (re-)loaded because of the IPv4 + IPv6 Alias which pfBlockerNG (DNSBL) automatically generates.
Editing these aliases is evil (and does not really work permanently) so I disabled the DNSBL feature and now everything (re-)loads fine....
Cheers
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