i did generate
keying as i would when signing a primary zone
     # keymgr sld.tld generate algorithm=rsasha256 ksk=yes zsk=yes
     7a618eaf94ea1d903233cb547faa24bae8cb49a5
     # knotc zone-reload sld.tld
     OK 
 After generating any keys you would need "knotc reload" I believe
 (instead of zone-reload). 
 
tried too.  but point taked, recipe changed.
  Please send the error message you got if this does not
help. 
<doh>  sorry not to have done that.
    2024-03-20T17:46:02.762674+00:00 rip knotd[3445]: error: [sld.tld.] DNSSEC, no keys
are available
    2024-03-20T17:46:02.763850+00:00 rip knotd[3445]: error: [sld.tld.] DNSSEC, failed to
load keys (no keys for signing)
    2024-03-20T17:46:02.764434+00:00 rip knotd[3445]: error: [sld.tld.] zone event
're-sign' failed (no keys for signing)
randy