Drawing looks strange, piping looks hollow and sprinkler heads a little off and Acad background looks greyish/grayish.

Drawing also seems to lag when panning, processes take longer

Calculation stops at Step 1a.4 - calcing total lengths

Can be accompanied with a "Runtime error 5 - invalid procedure call or argument" or "Runtime error 6 - overflow"

Greyed out options in the Addin Assistant and ribbons do not appear in Revit

When trying to open HydraCALC, you get Run-time error 9 - Subscript out of range

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)

When starting the AutoLIST process, the message box shown below pops up.  The process "pretends" to continue through, but when HydraLIST opens, it's completely blank.

Re-run Autolist with the drawing starting on the ground. Current run will not include any FSC information in the MISC tab in HydraList.

When viewing the final calc printout, the info sheet shows the line,

text1(35) - invisible

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

When opening HydraCALC, you get this error.

Startup error

An error has occured during startup. The decimal separator & digit grouping symbols are not set correctly in Control Panel! The digit grouping symbol must be a comma!

When opening HydraCalc v50, you get Run-time error '13' Type mismatch OK

The calc program will open but you cannot open any jobs or do anything in the window.