diff --git a/chat/preview/CharacterPreview.vue b/chat/preview/CharacterPreview.vue
index 9b18322..da3c844 100644
--- a/chat/preview/CharacterPreview.vue
+++ b/chat/preview/CharacterPreview.vue
@@ -213,7 +213,7 @@ export default class CharacterPreview extends Vue {
   updateCustoms(): void {
     this.customs = _.orderBy(
       _.map(
-        _.reject(this.character!.character.customs || [], (c) => _.isUndefined(c)) as CustomKink[],
+        _.reject(Object.values(this.character!.character.customs ?? []), (c) => _.isUndefined(c)) as CustomKink[],
         (c: CustomKink) => _.assign(
           {},
           c,
diff --git a/learn/matcher.ts b/learn/matcher.ts
index bd6f801..0c7753c 100644
--- a/learn/matcher.ts
+++ b/learn/matcher.ts
@@ -337,9 +337,9 @@ export class Matcher {
         return _.map(
             speciesOptions,
             (species) => {
-                const nc = _.cloneDeep(c);
-
-                nc.infotags[TagId.Species] = { string: species };
+                // Avoid _.cloneDeep because it chokes on array-like objects with very large keys
+                // _.cloneDeep will happily make arrays with 41 million elements
+                const nc = {...c, infotags: {...c.infotags, [TagId.Species]: {string: species}}};
 
                 return { character: nc, analysis: new CharacterAnalysis(nc) };
             }
@@ -975,18 +975,14 @@ export class Matcher {
     private getAllStandardKinks(c: Character): { [key: number]: KinkChoice } {
         const kinks = _.pickBy(c.kinks, _.isString);
 
-        _.each(
-          c.customs,
-          (custom: any) => {
-            if (!custom) {
-                return;
+        // Avoid using _.forEach on c.customs because lodash thinks it is an array
+        for (const custom of Object.values(c.customs)) {
+            if (custom) {
+                const children = (custom as any).children ?? {};
+
+                _.each(children, (child) => kinks[child] = custom.choice);
             }
-
-            const children = (custom.children) ? custom.children : {};
-
-            _.each(children, (child) => kinks[child] = custom.choice);
-          }
-        );
+        }
 
         return kinks as any;
     }
diff --git a/learn/store/worker.ts b/learn/store/worker.ts
index 37d5af3..5227715 100644
--- a/learn/store/worker.ts
+++ b/learn/store/worker.ts
@@ -26,7 +26,22 @@ export class WorkerStore implements PermanentIndexedStore {
 
 
     async getProfile(name: string): Promise<ProfileRecord | undefined> {
-        return this.workerClient.request('get', { name });
+        const record: ProfileRecord | undefined = await this.workerClient.request('get', { name });
+
+        // fix custom kinks to prevent hangs
+
+        if (record && Array.isArray(record.profileData.character.customs)) {
+            // fix customs because it will crash the client
+            const customsObject: ProfileRecord['profileData']['character']['customs'] = {};
+
+            for (const [key, value] of Object.entries(record.profileData.character.customs)) {
+                if (value !== undefined) customsObject[key] = value;
+            }
+
+            record.profileData.character.customs = customsObject;
+        }
+
+        return record;
     }