disattivate command

[MARCOC]

Hello everyone
I've been trying to open the sheets lately, where the corner drain command is off, and it's not possible to use it. Can you fix it? ? ?
are definitely files created with versions of old solidworks, but open and restored with 2017

 

[Wintel]

How was the sheet made?

 

[MARCOC]

What do you mean? ? I modeled them but they are made with the commands of sheet metal
today place a file that from that problem

 

[MARCOC]

Here is an example

 

[MARCOC]

hello wintel... did you manage to take a look at the file? ? ?

or who else can give an answer to why the command is disabled? ? ?

 

[SperX]

in the example that you have attached the sheet is created by a line, try to remake it starting from the design of a face.. .

 

[MARCOC]

I try, but if the solution were to give it back. . then I let it go because it would have to reshape and re-start everything

 

[MARCOC]

not and brought by that, always disabled,