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 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,

When trying to run the calculation, you get the message, 

"The system flow demand of ### exceeds the maximum rated flow as indicated in the Pump Curve for the pump with the inlet of PI and outlet of PO.  The calculation will not continue"

But your flow is a very large number

Turn off Wipeout frames was selected, but the drawing still has wipeouts

When selecting a pipe for the Move Main command, you get a fatal error

Generic Model template not found. Please select it.

Unable to select a pipe or fitting when trying to use the Delete Pipe tool.