diff --git a/core/block_dragger.ts b/core/block_dragger.ts
index e6be293917b..26d265183a0 100644
--- a/core/block_dragger.ts
+++ b/core/block_dragger.ts
@@ -382,7 +382,6 @@ export class BlockDragger implements IBlockDragger {
 
     blockAnimation.disconnectUiStop();
     this.connectionPreviewer.hidePreview();
-    this.connectionPreviewer.dispose();
 
     const preventMove =
       !!this.dragTarget_ &&
@@ -417,6 +416,9 @@ export class BlockDragger implements IBlockDragger {
         );
       }
     }
+    // Must dispose after `updateBlockAfterMove_` is called to not break the
+    // dynamic connections plugin.
+    this.connectionPreviewer.dispose();
     this.workspace_.setResizesEnabled(true);
 
     eventUtils.setGroup(false);
diff --git a/package-lock.json b/package-lock.json
index 792268cf8df..7ea0d49a0d0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "blockly",
-  "version": "10.4.0",
+  "version": "10.4.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "blockly",
-      "version": "10.4.0",
+      "version": "10.4.1",
       "hasInstallScript": true,
       "license": "Apache-2.0",
       "dependencies": {
diff --git a/package.json b/package.json
index 7214ba3d14f..88ec169ead6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "blockly",
-  "version": "10.4.0",
+  "version": "10.4.1",
   "description": "Blockly is a library for building visual programming editors.",
   "keywords": [
     "blockly"