Sizes show in schdule as 1/2" each time schedule is loaded even if reset by user.

Value of '3' is not valid for "Value". Value should be between minimum and maximum. Parameter name: Value component

Unhandled exception

Pick Start AutoCalc and nothing happens - NIL shows on command line

Could not find fitting for water supply test point can not match

Pipe sizes and lengths do not return to drawing. Pipe sizes disaprear

Step 3.2.2c - Creating Calc File

Unhandled Exception has occurred in a component... Item has already been added. Key in dictionary. Key being added: '[handle of object]' CodeBase: file: ../HCAD_HUI.DLL

Unhandled exception: object reference not set to an instance of an object

incorrect setting for the autocad system variable ATTREQ

HydraCALC is open on the taskbar but not visible onscreen.

When double-clicking an .HLF file from Windows Explorer, you get the error

Run-time error '3055', Not a valid file name

The windows Association for the file extension .HLF is incorrect Runtime Error 3055

Possible Microsoft Access issue on computer.

When trying to load into FIG Trees, user will either get a; Runtime Error 6 (Overflow) or; Error in Form 4 - Form Load, the application cannot continue Runtime Error 6

Unhandled Exception When clicking the 'Finish Area #' button at the completion of the AutoCALC process, a diablob box pops up; "Object reference not set to an Instance of an object" Just in time JIT Just-in-time System.NullReferenceException: CalcingNameSpace.AutoCalcForm.redButton

AutoCAD Error Aborting FATAL ERROR: Unhandled Access Violation Reading 0x00e0 Exception at d65273feh Fatal Error

When starting AutoCALC, it stops in the v50 Fuel Gauge at step 1a.4 - Calculating Total Lengths. 

Working on the pipe from node xxx to node xxx with a fitting string...

May be followed by a Runtime Error 13 as well

When attempting to Launch HydraLIST to start building your riser, you get this error;

When trying to insert a 3D fitting via the Fittings Parts Tree, the user gets the error message;

Microsoft .NET Framework
Unhandled Exception has occurred...
Argument 'Key' is not a valid value

When user clicks CONTINUE and tries to use the INSERT button to insert a fitting, another dialog box pops up

INSERT FITTINGS
Unhandled Exception...
Index was out of range.  Must be non-negative and less than the size of the collection.  Parameter name: index

Unknown *invalid_ skipole* 3D Risers HydraCAD v50

When starting the Autolist process, you get the error;

AutoList Error 101:  Could not read fitting group name.  Fix your Fitting Mapping in the HydraLIST toolbar

After clicking OK, you get this next

AutoLIST Error!!  AutoLIST failed!...  Please run Listing Checkups