...
If an issue occurs during the install, when trying to lay down the Sentinel Run-Time Environment Installer, please cancel the install and follow the Sentinel Hasp Installation steps in the article below. Once this has completed, run the ProWrite DesignCalcs install again:
Installing or Updating the Windows Driver for the Hasp License Key.
An install issue with Initial 2021.6 Release (2021.6.0.5204) was causing loss of custom data (e.g. materials, customer info, etc.). That release was pulled, the issue was resolved and the final 2021.6 Release (2021.6.1.5235) was released. DC-7406
...