Hello, I've tried to upgrade from knot 2.3.3 to 2.4.0, but ran into a DNSSEC related error, invalidating my DNSSEC-enabled zones : 2017-01-25T15:33:42 notice: [geekwu.org.] journal, obsolete exists, file '/var/lib/knot/external/geekwu.org.db' 2017-01-25T15:33:42 error: [geekwu.org.] DNSSEC, failed to initialize (not found) 2017-01-25T15:33:42 error: [geekwu.org.] zone event 'load' failed (not found) stracing the error leads to this : [pid 16787] open("/var/lib/knot/external/keys/policy_\\x06policy.json", O_RDONLY) = -1 ENOENT (No such file or directory) I have some policy files in /var/lib/knot/external/keys: -rw-r--r-- 1 knot knot 320 janv. 26 2016 policy_default.json -rw-r--r-- 1 knot knot 320 janv. 26 2016 policy_default_rsa.json -rw-r--r-- 1 knot knot 320 juin 14 2016 policy_ecdsa.json From where these \\x06policy may come ? Thanks,