After running an Autolist, in HydraLIST and the LINES tab you have a listing tag ID called RM

Unhandled Exception... System.ArgumentOutOfRangeException: Index was out of range

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.

UCS is out of whack or the clockwise option is checked in units dialog Tagging

Before raising to 3D, the sidewall sprinklers point in the correct direction.  After returning to 3D, some sidewalls have been flipped 180°

No error, tagged main gets listed as a different ID example: Main D has missing pieces which appear as Main C SEARCH WORDS: missing skip not listed wrong n/a

Some threaded branch lines are not being tagged automatically as expected. Automatic Line Tags are missing after running AutoLIST. none

The diameter tag HANDLE is 0000 this number is used to determin if the pipe is sloped - yielding an incorrect pipe length. Move Line / Move Main make the diameter tag HANDLE be 0000

??? Error when picking NewTag button. Connection Failed listing tags

No error , main tagged as welded fab gets listed as threaded material with an Auto Line Number inserted at a riser nipple where the main changes elevation. not listed missing as a line in lines listed as threaded auto line tag autoline tag auto tag none

No Error given but Pipes look like theyy are missing after program completion.

Error No Tags Found No Tags Found

??? Connection Failed listing tags

Revit could not complete the external commad... Method not found

After creating a legend for your 3D riser, you use the ILT command to insert a legend tag.  It inserts the tag, but you get the error.  You have to click CONTINUE then repeat the command to place another one.

Unhandled exception has occurred in a component in your application

Arithmetic operation resulted in an overflow

Application does not support just-in-time (JIT)

3D Flow diagram missing direction arrows and flows

When running an autolist, you're no longer getting the listing tag IDs such as MAIN A.1, MAIN A.2, MAIN A.3, etc show up on your drawing.  It only shows the original tag of MAIN A 

Same can be said for line tags #LN1.1, #LN1.2, etc

Revit could not complete the external command... Autodesk.Revit.Exceptions.InvalidObjectException

Revit could not complete the external command... x must be a finite number