After starting the Move Main command (MMA), and selecting the main to move, the system freezes and the only way to get out is to end task in the Task Manager

When selecting the pipe to move in the move line command, you get the error;

Error!!  Restart command, and select a different pipe..

When you insert your vertical pipe/riser nipple, you see the text "HCAD/D_UNITS" as the diameter's suffix

When inserting a vertical pipe, the pipe diameter's suffix doesn't match the regular pipe nor the drawing's setting

When trying to size a pipe, you get the message, "Warning! - Z Coordinates have been detected and must be removed!

Pick OK to begin Phase One elimination

When trying to open HydraCAD after a recent install, you get this error or one similar to it;

"The item 'acad.exe' that this shortcut refers to has been deleted"

When running the Line Couplings command (LC), you get the error, "No branch lines found crossing the line(s) you picked", even though it's 100% a fact the lines are intersecting

When importing a Persistent Model into Revizto, none of the riser nipples are visible

When reading a Persistent Model drawing in Revizto, the units are not correct