Library links fail in modules

[Callum]

I've created links in a story to some generic monsters from the d20 Monsters book, and then exported that story in a module. When I activate the module in another campaign and try to open the link, it fails with the error message "Could not open sheet with data from unloaded module 'd20 Monsters@module_name'" - even though d20 Monsters is activated in the current campaign.

[Dementia Five]

Can you describe how you created the links in your story?