fix

app/models/communication/block/component/file.rb

@@ -2,7 +2,10 @@ class Communication::Block::Component::File < Communication::Block::Component::B
 
   def blob
     return if data.nil? || data['id'].blank?
-    @blob ||= template.blob_with_id data['id']
+    @blob ||= template.block
+                      .university
+                      .active_storage_blobs
+                      .find_by id: data['id']
   end
 
   def default_data
@@ -14,5 +17,4 @@ class Communication::Block::Component::File < Communication::Block::Component::B
   def git_dependencies
     [blob]
   end
-
 end

app/models/communication/block/template/base.rb

@@ -132,10 +132,6 @@ class Communication::Block::Template::Base
     true
   end
 
-  def blob_with_id(id)
-    university.active_storage_blobs.find_by id: id
-  end
-
   def default_data
     hash = {}
     hash['elements'] = [] if has_element_class?