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 starting the process to insert a Flexible Sprinkler Connection, you get the error message above;

An error occurred reading the FSC-Selections.txt

When using 'Publish selected layouts' or doing a batch plot in AutoCAD 2024, the riser nipple/vertial pipe does not display correctly.  It'll either be missing outright or a proxy bounding box will be in its place.  If you plot a single sheet, it works fine.

AutoCAD 2024 batch plot

'

AutoCAD 2024 single plot

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

Invalid file format

When defining a flexible sprinkler connection, the following error is raised ("Input string was not in a correct format"):

No error reported for FSC even when maximum length is clearly exceeded

If you view the FSC properties, it's possible the HoseLength and MaxNumberOfBends values are not set.

When trying to open the dialogue box to define a Flexible Sprinkler connection, the following message box error appears. 

Could not find file; FSC-INSERTDEFLINE.txt

When attempting to create a 3D model, you get the error; Please switch to System Model to Annotate Drops and Sprigs plus

System.NullReferenceException: Object reference not set to an instance of an object

at HCADexports.RevitConversion.create_hydrapipes_from_db()

at HCADexports.RevitConversion.create_hydrafittings_from_db(List'1 pipes, List'1 heads)

Final Printout Runtime 481 Invalid File Runtime 481

When accessing a HydraLIST wizard, this error appears: