A module has been manually changed or become corrupted and needs to be restored to its original state
Solution 1 - Revert Entire Module and All Changes
Make sure the module is loaded in the Data Module Activation window. You can load it by going to Library → Modules → click Load on the module you want to revert. For this example, we are using the Rise of the Drow - Collectors Edition adventure module.
In the Data Module Activation window, right-click on the module you’d like to revert and select Revert Changes from the radial pop-up menu.
The module will be instantly reverted to it’s original state. You can check this by right-clicking again and noting that the Revert Changes option is no longer available.
Solution 2 - Revert Individual Changes Leaving Other Changes Intact
Continuing with our Rise of the Drow - Collectors Edition adventure module as an example, three Story items in the module have been edited. This is denoted by the icon of a book with a pen. Other unchanged entries have plain book icons.
To revert a single entry (in this case, the middle entry), right-click on that entry and select Revert Changes from the radial pop-up menu.
The entry will be reverted instantly. You can visually verify this by the fact that the edit icon on the right has changed to a book icon.