fix

app/services/content_migration.rb

@@ -18,7 +18,7 @@ class ContentMigration
       # ignore blocks already inside headings
       next if block.heading.present?
       # Move title from block to heading
-      if block.title.present?
+      if block.title.present? && !block.call_to_action? # call to actions keep their title 
         heading = object.headings.create(university: object.university)
         heading.title = block.title
         heading.position = heading_position