diff --git a/src/cheats/mod_EditChildCheatDatatypeCleanupNew.tw b/src/cheats/mod_EditChildCheatDatatypeCleanupNew.tw
index 57449fb187f0d00d37e25675b53595d5492a6238..283f230b8ca21b397bc7728936812e07caf97b93 100644
--- a/src/cheats/mod_EditChildCheatDatatypeCleanupNew.tw
+++ b/src/cheats/mod_EditChildCheatDatatypeCleanupNew.tw
@@ -322,9 +322,9 @@ You perform the dark rituals, pray to the dark gods, and sell your soul for the
 <br><br>This slave has been changed forever and you have lost a bit of your soul, YOU CHEATER!
 
 <<set $activeSlave = clone($tempSlave)>>
-<<run ibc.recalculate_coeff_id($activeSlave.ID)>>
 <<unset $tempSlave>>
 <<set _escn = $cribs.findIndex(function(s) { s.ID === $activeSlave.ID; })>>
 <<if def _escn>>
 	<<set $cribs[_escn] = clone($activeSlave)>>
 <</if>>
+<<run ibc.recalculate_coeff_id($activeSlave.ID)>>
diff --git a/src/cheats/mod_EditSlaveCheatDatatypeCleanup.tw b/src/cheats/mod_EditSlaveCheatDatatypeCleanup.tw
index f07890401afb50ae8ecaadb056f521e72f7fa687..015bbf3689f12cfe7aa5def560e7729c99d46c73 100644
--- a/src/cheats/mod_EditSlaveCheatDatatypeCleanup.tw
+++ b/src/cheats/mod_EditSlaveCheatDatatypeCleanup.tw
@@ -66,9 +66,9 @@ You perform the dark rituals, pray to the dark gods, and sell your soul for the
 <br><br>This slave has been changed forever and you have lost a bit of your soul, YOU CHEATER!
 
 <<set $activeSlave = clone($tempSlave)>>
-<<run ibc.recalculate_coeff_id($activeSlave.ID)>>
 <<unset $tempSlave>>
 <<set _escdc = $slaveIndices[$activeSlave.ID]>>
 <<if def _escdc>>
 	<<set $slaves[_escdc] = $activeSlave>>
 <</if>>
+<<run ibc.recalculate_coeff_id($activeSlave.ID)>>
diff --git a/src/cheats/mod_EditSlaveCheatDatatypeCleanupNew.tw b/src/cheats/mod_EditSlaveCheatDatatypeCleanupNew.tw
index 196caf23c024e965949b048d0024c81c1671903c..043d863a43e53d02bd68d7404ded8b01fa599212 100644
--- a/src/cheats/mod_EditSlaveCheatDatatypeCleanupNew.tw
+++ b/src/cheats/mod_EditSlaveCheatDatatypeCleanupNew.tw
@@ -225,9 +225,9 @@ You perform the dark rituals, pray to the dark gods, and sell your soul for the
 <br><br>This slave has been changed forever and you have lost a bit of your soul, YOU CHEATER!
 
 <<set $activeSlave = clone($tempSlave)>>
-<<run ibc.recalculate_coeff_id($activeSlave.ID)>>
 <<unset $tempSlave>>
 <<set _escn = $slaveIndices[$activeSlave.ID]>>
 <<if def _escn>>
 	<<set $slaves[_escn] = clone($activeSlave)>>
 <</if>>
+<<run ibc.recalculate_coeff_id($activeSlave.ID)>>
diff --git a/src/js/ibcJS.js b/src/js/ibcJS.js
index fbd652e6f55e1031dc867ea121bd72269c471bab..d1e916f4d49a9fa50ca9343b1ad5b359142887a7 100644
--- a/src/js/ibcJS.js
+++ b/src/js/ibcJS.js
@@ -338,7 +338,7 @@ globalThis.ibc = (() => {
         if (a === 0 || b === 0)
             return 0;
 
-        return kinship_one_many(a, [b], ignore_coeffs);
+        return kinship_one_many(a, [b], ignore_coeffs)[b.ID];
     };
 
     // Determine the coefficient of inbreeding of a single slave
@@ -350,7 +350,7 @@ globalThis.ibc = (() => {
         if (!ignore_coeffs && gp !== null && "inbreedingCoeff" in gp && gp.inbreedingCoeff !== -1)
             return gp.inbreedingCoeff;
 
-        return coeff_slaves([slave])[slave.ID];
+        return coeff_slaves([slave], ignore_coeffs)[slave.ID];
     };
 
     // Determine the kinship between one and many slaves. Returns an mapping from the ID of each of