When you add a tab (page) to a DotNetNuke website that copies from an existing page, with some modules copied by reference and others a straight copy - modules will mysteriously disappear. Here is what I have just done:

Scenario

• Default Install using starter kit 4.5.3
• No modifications at all
• Ensure the cache time on text html is 0
• Add a page called “a”, grant all users read permissions
• Add a text HTML Module to the left pane (thus the page has 2 HTML modules)
• Create a page called “b” that copy’s from “a:
• The first module do a copy by reference
  The second module do by copy
  Again all users read permissions
• Repeat the process for pages “c”,  “d” and “e”
  Take a look at pages “d” and “e” and I will bet that they are missing a module.

{p.s. Running on a sql express database under casini web server, and have also replicated it under IIS}

Can anyone help me?