I was misunderstanding the issue. Here's the user's response, just now...TLDR, sometimes inventor checks out the .ipt files and in one case he added a note to the .iam file that promulgated through the .ipt files
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"The way it’s SUPPOSED to work is, when you check out an assembly file for editing, the only thing that should be checked out of vault is the assembly file itself- the “~.iam” file.
NONE of the component parts, or rather, the “~.ipt” files that are used in the assembly, should ever be checked out along with it. Only the .iam assembly file.
Note that all of the component parts will always be shown in the browser if they are part of the assembly, but this does not mean they are checked out separately with the assembly, only that they are used to build that assembly.
Sometimes, when you open an assembly, Vault will work the way it’s supposed to, and only check out the assembly file as intended.
And sometimes, Vault will decide to check out all of the component part files (.ipt files) along with the assembly.
But you never know which of these two things Vault will do. It seems to be totally random!
For example, I was building a model of an old structure type with obsolete “Flowerpot” insulators and a bayonet channel-iron brace, which we haven’t used in our system in decades; and I created this only as a reference model, not for new construction. Unbeknownst to me, Vault had decided to check out each and every part that I had used to create that model. And when I checked it in and added the comment “Obsolete, Original construction drawing for reference ONLY” Vault went and added that comment to each and every part that was used in that model! (Arrrgh!) And this includes many standard parts that we use in virtually ALL of our assemblies, including the standard 8’ copper ground rod."
J. Logan
CAD Administrator >AutoDesk Products, Windows 11