Custom iproperty reverts back to original value after file is saved

[bob.wiley]

In the attached file there are two custom iProperties that cannot be perminantly updated nor deleted. The iProperties are "size" and "purch_qty". These iProperties were created and set using a custom macro but they are of course accessable via the standard iProperties dialog. I can change the values for these particular iProperties but as soon as I save the file they revert back to their original values. Same goes for trying to delete them. All other iProperties, custom and otherwise, seem to behave normally.

The sketch in this file originated with a 2D DXF file for a vendor supplied aluminum extrusion quite a few years back. The original file has been copied (save-as...) to about 20 different files over the years. The iProperties in question were added years after most of the files were created, Each file is exibiting the same problem. These files are used in a LOT of assemblies. The thought of recreating all these files from scratch and updating the assemblies is not very inviting.

No other IPT files seem to be having this issue.

[cwhetten · Accepted solution]

These "custom iProperties" are actually user parameters that are controlled by a formula.  See them in your parameters editor (Manage tab > Parameters panel > Parameters).  The reason they show up in the list of custom iProperties is because they have been exported (in the image above, the two checked boxes).

So, whenever you save, the part is refreshed and the formulas overwrite any manual changes you made in the iProperties.

[nmunro · Accepted solution]

Those two properties are generated from user parameters of the same name (exported). You can either change the user parameters (neither are referenced in an equation), or uncheck the exported checkbox in the Parameters dialog and manually recreate the properties.

[bob.wiley]

Spoiler

Boy do I feel dumb. And I'm the one that set that up.

Thanks!