diff --git a/app/imports/api/creature/computation/ComputationMemo.js b/app/imports/api/creature/computation/ComputationMemo.js
index 160f6a1d..b88eb84c 100644
--- a/app/imports/api/creature/computation/ComputationMemo.js
+++ b/app/imports/api/creature/computation/ComputationMemo.js
@@ -89,7 +89,7 @@ export default class ComputationMemo {
     if (this.statsByVariableName[variableName]){
       prop.value = NaN;
       prop.computationDetails.error = 'variableNameCollision';
-      console.warn('variableNameCollision', prop);
+      if (Meteor.isClient) console.warn('variableNameCollision', prop);
       return;
     }
     this.statsByVariableName[variableName] = prop;
@@ -111,7 +111,9 @@ export default class ComputationMemo {
     prop = this.registerProperty(prop);
     let targets = this.getEffectTargets(prop);
     targets.forEach(target => {
-      target.computationDetails.effects.push(prop);
+      if (target.computationDetails.effects){
+        target.computationDetails.effects.push(prop);
+      }
     });
     if (!targets.size){
       this.unassignedEffects.push(prop);
diff --git a/app/imports/api/creature/computation/computeStat.js b/app/imports/api/creature/computation/computeStat.js
index d32767e5..8f64cbc8 100644
--- a/app/imports/api/creature/computation/computeStat.js
+++ b/app/imports/api/creature/computation/computeStat.js
@@ -13,7 +13,7 @@ export default function computeStat(stat, memo){
     stat.value = NaN;
     stat.computationDetails.busyComputing = false;
     stat.computationDetails.error = 'dependencyLoop';
-    console.warn('dependencyLoop', stat);
+    if (Meteor.isClient) console.warn('dependencyLoop', stat);
     return;
   }
   // Before doing any work, mark this stat as busy
diff --git a/app/imports/api/creature/computation/writeAlteredProperties.js b/app/imports/api/creature/computation/writeAlteredProperties.js
index efd316b6..14a407f5 100644
--- a/app/imports/api/creature/computation/writeAlteredProperties.js
+++ b/app/imports/api/creature/computation/writeAlteredProperties.js
@@ -84,7 +84,10 @@ function bulkWriteProperties(bulkWriteOps){
       bulkWriteOps,
       {ordered : false},
       function(e){
-        if (e) console.error(e);
+        if (e) {
+          console.error('Bulk write failed: ');
+          console.error(e);
+        }
       }
     );
   } else {