Index: vendor/magento/module-swatches/Block/Product/Renderer/Configurable.php
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/vendor/magento/module-swatches/Block/Product/Renderer/Configurable.php b/vendor/magento/module-swatches/Block/Product/Renderer/Configurable.php
--- a/vendor/magento/module-swatches/Block/Product/Renderer/Configurable.php	
+++ b/vendor/magento/module-swatches/Block/Product/Renderer/Configurable.php	(date 1695864207448)
@@ -427,7 +427,15 @@
                 $productAttribute = $attribute->getProductAttribute();
                 $productAttributeId = $productAttribute->getId();
                 if (isset($attributeData[$productAttributeId])) {
-                    $ids[$product->getData($productAttribute->getAttributeCode())] = 1;
+                    $key = $product->getData($productAttribute->getAttributeCode());
+                    if (empty($key) && $productAttribute->getAttributeCode() === 'width') {
+                        try {
+                            $reloadProduct = ObjectManager::getInstance()->get(\Magento\Catalog\Model\ProductRepository::class)->getById($product->getId(), false, $product->getStoreId(), true);
+                            $key = $reloadProduct->getData($productAttribute->getAttributeCode());
+                        } catch (\Exception $e) {
+                        }
+                    }
+                    $ids[$key] = 1;
                 }
             }
         }