diff --git a/web/libs/editor/src/components/NewTaxonomy/NewTaxonomy.scss b/web/libs/editor/src/components/NewTaxonomy/NewTaxonomy.scss
index 730ce311ad52..9cbd3a8189a8 100644
--- a/web/libs/editor/src/components/NewTaxonomy/NewTaxonomy.scss
+++ b/web/libs/editor/src/components/NewTaxonomy/NewTaxonomy.scss
@@ -1,4 +1,10 @@
 :global(.htx-taxonomy-item-color) {
   padding: 4px;
   border-radius: 2px;
-}
\ No newline at end of file
+}
+
+// increase specificity to override usual .ant-select-dropdown z-index
+:global(.htx-taxonomy-dropdown.ant-select-dropdown) {
+  // Create Project popup has 2000
+  z-index: 3000;
+}
diff --git a/web/libs/editor/src/components/NewTaxonomy/NewTaxonomy.tsx b/web/libs/editor/src/components/NewTaxonomy/NewTaxonomy.tsx
index a1fcd742d807..c6770de2360c 100644
--- a/web/libs/editor/src/components/NewTaxonomy/NewTaxonomy.tsx
+++ b/web/libs/editor/src/components/NewTaxonomy/NewTaxonomy.tsx
@@ -196,6 +196,7 @@ const NewTaxonomy = ({
       placeholder={options.placeholder || "Click to add..."}
       style={style}
       className="htx-taxonomy"
+      popupClassName="htx-taxonomy-dropdown"
       disabled={!isEditable}
     />
   );
diff --git a/web/libs/editor/src/mixins/SharedChoiceStore/mixin.js b/web/libs/editor/src/mixins/SharedChoiceStore/mixin.js
index 226cc006c349..411592936462 100644
--- a/web/libs/editor/src/mixins/SharedChoiceStore/mixin.js
+++ b/web/libs/editor/src/mixins/SharedChoiceStore/mixin.js
@@ -1,4 +1,4 @@
-import { types } from "mobx-state-tree";
+import { tryReference, types } from "mobx-state-tree";
 import Types from "../../core/Types";
 import { SharedStoreModel } from "./model";
 
@@ -30,7 +30,7 @@ const Store = types.optional(types.maybeNull(types.late(() => types.reference(Sh
  *
  * It was specifically designed to be used with Repeater tag where the memory issues are the most sound.
  *
- * This mixin provedes a `sharedStore` property to the model which is a reference to the shared store.
+ * This mixin provides a `sharedStore` property to the model which is a reference to the shared store.
  *
  * The concept behind it is that whenever a model is parsing a snapshot, children are subtracted from the
  * initial snapshot, and put into the newly created SharedStore.
@@ -73,7 +73,9 @@ export const SharedStoreMixin = types
   }))
   .actions((self) => ({
     afterCreate() {
-      if (!self.store) {
+      const currentStore = tryReference(() => self.store);
+
+      if (!currentStore) {
         const store = Stores.get(self.storeId);
         const annotationStore = Types.getParentOfTypeString(self, "AnnotationStore");