Prometheus metric dnscrypt_proxy_blocked_queries_total always reporting zero despite many queries being blocked

[paynekw]

After using the recently-added Prometheus metrics to create a dnscrypt-proxy dashboard in Grafana, I noticed that both of my instances are always reporting zero for the number of blocked queries metric, but all other metrics appear to be working fine.

# HELP dnscrypt_proxy_queries_total Total number of DNS queries processed
# TYPE dnscrypt_proxy_queries_total counter
dnscrypt_proxy_queries_total 5080
# HELP dnscrypt_proxy_queries_per_second Current queries per second rate
# TYPE dnscrypt_proxy_queries_per_second gauge
dnscrypt_proxy_queries_per_second 0.57
# HELP dnscrypt_proxy_uptime_seconds Uptime in seconds
# TYPE dnscrypt_proxy_uptime_seconds counter
dnscrypt_proxy_uptime_seconds 12547
# HELP dnscrypt_proxy_cache_hits_total Total number of cache hits
# TYPE dnscrypt_proxy_cache_hits_total counter
dnscrypt_proxy_cache_hits_total 1593
# HELP dnscrypt_proxy_cache_misses_total Total number of cache misses
# TYPE dnscrypt_proxy_cache_misses_total counter
dnscrypt_proxy_cache_misses_total 3487
# HELP dnscrypt_proxy_cache_hit_ratio Current cache hit ratio
# TYPE dnscrypt_proxy_cache_hit_ratio gauge
dnscrypt_proxy_cache_hit_ratio 0.3136

# HELP dnscrypt_proxy_blocked_queries_total Total number of blocked queries
# TYPE dnscrypt_proxy_blocked_queries_total counter
dnscrypt_proxy_blocked_queries_total 0 <--- ALWAYS ZERO ON BOTH INSTANCES

Both instances have sizeable blocklists and I cannot access anything in the blocklists from any of my devices. Blocked queries are showing up in dns.log and blocked.log as can be seen below:

[2025-07-02 19:23:00]   100.85.66.11    collector.github.com    A       REJECT  0ms     -
[2025-07-02 19:23:00]   100.85.66.11    collector.github.com    AAAA    REJECT  0ms     -
[2025-07-02 19:23:00]   100.85.66.11    collector.github.com    A       REJECT  0ms     -
[2025-07-02 19:23:00]   100.85.66.11    collector.github.com    AAAA    REJECT  0ms     -
[2025-07-02 19:23:16]   100.85.66.11    us.i.posthog.com        A       REJECT  0ms     -
[2025-07-02 19:23:16]   100.85.66.11    us.i.posthog.com        AAAA    REJECT  0ms     -
[2025-07-02 19:23:16]   100.85.66.11    us.i.posthog.com        A       REJECT  0ms     -
[2025-07-02 19:23:16]   100.85.66.11    us.i.posthog.com        AAAA    REJECT  0ms     -
[2025-07-02 19:23:19]   100.85.66.11    us.i.posthog.com        A       REJECT  0ms     -
[2025-07-02 19:23:19]   100.85.66.11    us.i.posthog.com        AAAA    REJECT  0ms     -
[2025-07-02 19:23:19]   100.85.66.11    us.i.posthog.com        A       REJECT  0ms     -
[2025-07-02 19:23:19]   100.85.66.11    us.i.posthog.com        AAAA    REJECT  0ms     -
[2025-07-02 19:23:22]   100.85.66.11    us.i.posthog.com        A       REJECT  0ms     -
[2025-07-02 19:23:22]   100.85.66.11    us.i.posthog.com        AAAA    REJECT  0ms     -
[2025-07-02 19:23:22]   100.85.66.11    us.i.posthog.com        A       REJECT  0ms     -
[2025-07-02 19:23:22]   100.85.66.11    us.i.posthog.com        AAAA    REJECT  0ms     -
[2025-07-02 19:23:25]   100.85.66.11    us.i.posthog.com        A       REJECT  0ms     -
[2025-07-02 19:23:25]   100.85.66.11    us.i.posthog.com        AAAA    REJECT  0ms     -
[2025-07-02 19:23:25]   100.85.66.11    us.i.posthog.com        A       REJECT  0ms     -
[2025-07-02 19:23:25]   100.85.66.11    us.i.posthog.com        AAAA    REJECT  0ms     -
[2025-07-02 19:24:05]   100.85.66.11    staticcdn.duckduckgo.com        A       PASS    0ms     -
[2025-07-02 19:24:05]   100.85.66.11    staticcdn.duckduckgo.com        AAAA    SYNTH   0ms     -
[2025-07-02 19:24:08]   100.85.66.11    collector.github.com    A       REJECT  0ms     -
[2025-07-02 19:24:08]   100.85.66.11    api.github.com  AAAA    SYNTH   0ms     -
[2025-07-02 19:24:08]   100.85.66.11    collector.github.com    AAAA    REJECT  0ms     -
[2025-07-02 19:24:08]   100.85.66.11    collector.github.com    A       REJECT  0ms     -
[2025-07-02 19:24:08]   100.85.66.11    collector.github.com    AAAA    REJECT  0ms     -
[2025-07-02 19:24:08]   100.85.66.11    api.github.com  A       PASS    319ms   doh.tiarap.org
[2025-07-02 19:24:19]   100.85.66.11    collector.github.com    A       REJECT  0ms     -
[2025-07-02 19:24:19]   100.85.66.11    collector.github.com    AAAA    REJECT  0ms     -
[2025-07-02 19:24:19]   100.85.66.11    collector.github.com    A       REJECT  0ms     -
[2025-07-02 19:24:19]   100.85.66.11    collector.github.com    AAAA    REJECT  0ms     -

Both instances are having the same issue and are running the latest version.

$ ./dnscrypt-proxy --version
2.1.12

[62f1346c-4576-42b3-afcb-23ef1820da34]

That was recently fixed in the development version, so use that or wait for the next release.