Encoutered Improper Argument when deleting Memory Block

[AC]

I currently have several UDT's and I created a memory block from them. I edited the Structure with a more advanced one to replace it but I get a terminal error every time I try the following....

• Deleting the Memorty block of the Structure
• Importing the updated structure
• Making any changes to the memory block of the structure once it is created.

Any suggestions?  I also have to terminate the program once I get this error via task manager as it locks up.

[franji1]

Yes - you need to remove any related Memory Images before modifying a UDT definition.  Bad things can happen.  That is one of the holes I am trying to fix for 2.10.

Before modifying your UDT, you can capture the values in a Memory View after writing the Memory Image to a PLC.  However, there currently is no way to "import" that data back in.  You will have to re-enter those values after modifying your UDT.