When attempting to convert an existing polyline to the Remote Area polyline, you get the following error when selecting a pline. Error: Automation Error. Key not found Command:

Area # section is blank or missing remote areas in the AutoCalc Setup dialog box. Area number is not recognized

Edit Remote Area dialog box is cut off (Can also happen to the main HydraCALC for Revit Setup dialog box)

Machine is set up to generate old-style (pre-AutoCAD 14) polylines. Flowing Heads Remote Area

Command Failure for External Command... Object reference not set to an instance of an object

Step 1a.1 - You may be missing a selected pipe type from master.dat or no pipe type has been selected for a particular system component

When attempting to setup a sprinkler head, after clicking OK in the definition window, the command prompt looks like this and no sprinkler head is inserted;

When trying to select Pick Light, this error shows... Sequence contains no elements

When trying to insert a Hydraulic demand block (Compact/Standard/Expanded) (IHD command) and after selecting the .WXF file to use;

You get the error message;

Error: bad argument type: numberp: DATAFILE

And the command kicks you out.

One or more toolbars cannot be found after selecting a menu or command.

This happens because the toolbar is being opened 'off screen'. This usually happens when the computer has a dual monitor but the 2nd monitor isn't currently connected. 

After calculating system this message pops up..."The specified remote head does not have a k factor. Please fix your input" hydcalc.exe

Step 5a.3 "Attaching Elevation of ~ to Node ~~~~

Step 5a.3 "Calculating"

"The specified remote node does not have a k-factor. Please fix your input."

"Calculation failed for unknown reason"

When Opening HydraCAD or trying to list a drawing, you recieve any Error containing the following CLSID:

44D62FAE-67A7-4131-BF38-489CDFE44738

Or any of the following HRESULT error numbers:

0x800736B1

0x80040154

0x80070002

0x80080005

0x80029C4A TYPE_E_CANTLOADLIBRARY

Blacked out cells in Head Selector dialog

No error, but after clicking Setup, Revit freezes / stops working, and nothing else is able to be selected.

When selecting "Retrieve Part Num/Desc <" from the sprinkler Block Definition window, you get the error;

Error: bad argument type: stringp nil

When plotting to Bluebeam document, some HydraCAD drawing entities show up blacked out.

AutoCAD view;

PDF generated by Bluebeam;

When selecting the PROPERTIES palette for a riser nipple, the values are blank

Pop-up immediately after selecting RTS Points

The location that your document is saved in cannot be used. Please select that folder that you would like RTS data saved to,