To Resolve this issue please clear the licensing information and restart erwin DM. In releases 2021R1 and newer, please use the following reference:
In releases prior to 2021R1, please delete the folder C:\ProgramData\erwin\Data Modeler\Licensing and then try again.
Note: The ProgramData folder may not be visible by default as hidden folders are not displayed with default settings. To view this folder you can...
1) Press windows key + R, paste in: C:\ProgramData\erwin\Data Modeler\Licensing and hit enter
2) Navigate to C: drive, go into view tab (1), enable hidden items (2)
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