Went back to using regular image:// stream

system/config/streams.yaml

@@ -5,11 +5,6 @@ schemes:
       - assets
 
   image:
-    type: ReadOnlyStream
-    paths:
-      - user://images
-
-  imagecache:
     type: ReadOnlyStream
     paths:
       - images

system/src/Grav/Common/Page/Medium.php

@@ -421,7 +421,7 @@ class Medium extends Data
     {
         $locator = self::$grav['locator'];
 
-        $images_dir = $locator->findResource('imagecache://');
+        $images_dir = $locator->findResource('image://');
 
         // TODO: add default file
         $file = $this->get($variable);