This error is unique to version 24.2.001.   When restarting a calcultion that previously failed, after picking the Continue button the program (Revit) totally freezes!!!!

When adding a device the below error appears.

When raising to 3D, you get the following error;

Error inserting to block table HEAD#/HH## to head dictionary

No error occurs but HydraCAD will not properly load and Hcad commands do not work.  

A quick test is to select the drop menu [File|New], select the template file 'HydraCAD Imperial Default.dwt'.  

The Drawing Setup window should appear but it does not, it loads straight into a blank drawing.

This is what you should see (press F2 to review the text window);

Instead you only see;

HCAD_ADS r4 functions Loaded.

AutoCAD menu utilities loaded.
Requires an integer between 0 and 32767.

3dFitting registry keys found

Requires an integer between 0 and 32767. 
 

When a folder sent as a ZIP file is extracted, it's likely all of the files will be blocked by Windows.  This prevents the files from functioning properly. 

You can right-click each file, select PROPERTIES then GENERAL then click the UNBLOCK checkbox, however this may be time consuming if many files are blocked.

This method will describe how to unblock many files at once.  

When using option Hang To: Bottom of Roof or Floor nothing happens, as well as no hanger lengths showing up when tagging. 

No error but the calculation process takes a very long time and is slow.

The process hangs and usually the RAM runs up to 100%.  You'll likely hear the computer's fan rev up.

I can't find the 'Sentinel Product Key' for my Gemalto entitlement. 

Background changes to gray and navigating drawing becomes sluggish after using the Newforma Konekt add in.

Running HydraCAD commands do not work in one drawing, but will work in a different drawing in the same session of AutoCAD/HydraCAD.

Inserting a pipe dimesion gives an 'unknown command' message.

When attempting to create a new FSC definition, you get this error message.  Clicking OK closes the command

When inserting a flexible sprinkler connection (FSC) after its setup, you get two error messages

Error importing hose over size percent, check your FSC dialog properties

Setting Over Percent to 10%

Error importing hose under size percent, check your FSC dialog properties

Setting Under Percent to 20%

Clicking OK in each window will allow you to continue and insert the FSC detail

When double-clicking an .HVUF file, you get a Run-time error 321

Invalid file format

When connecting a hard pipe armover to a flexible sprinkler connection (FSC), the flex hose doesn't continue straight, instead it immediately turns 90° before curving back and down to the sprinkler head.

Even with setting the connection to OVER-DOWN

When selecting a vertical pipe/riser nipple hydrapipe, the PROPERTIES window shows "no selection" instead of "hydrapipe"

You may notice that you cannot use the 'change length' command (CL) or cannot rotate riser nipple (RRT)

Revit could not complete the external command... Object Reference not set to an instance of an object.

Initialization Failed... Could not find part of the path

Spacing and Layout... Unhandled Exception... Method not found: HeadSelectorForm

When accessing a HydraLIST wizard, this error appears: 

The error is

When accessing a HydraLIST wizard

The cause: an entry in the wizard file has been deleted, causing a blank field in the wizard

The solution: send the .wzrd file to Hydratec for repair. The .wzrd file is located in the :\HES\Hydlist\VER50\Data\Setup

As always, let me know if you have questions and when the card is ready for review.