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AutoCAD Based Piping (Ribbon/Toolbar/Location)
Description:
When you insert your vertical pipe/riser nipple, you see the text "HCAD/D_UNITS" as the diameter's suffix
Corrupted HCAD_ENV.INI file
Using Windows File Explorer, go to this folder; C:\HES\HydraCAD\Ver50\Programs\Version5?
Find the file HCAD_ENV.INI and delete it. Replace with a working file.