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Save failed with "a deleted or invalid class id was used"

Save failed with "a deleted or invalid class id was used"

Save failed with "a deleted or invalid class id was used"

(OP)
I'm modifying a part I've made earlier. This part is some sort of base part of which other parts are made. Today, after deleting a thread, save fails with the message "a deleted or invalid class id was used". I've been thinking about redrawing the part, but it is so complicated that it will take days to do so. So I'm hoping for a solution to the save problem instead. I'm using NX6.

I've done part cleanup, put the part back in the original folder and also restored the part from a backup several weeks old. This puzzles me, because several days ago I was still able to remove the thread and save and the backup is older than that.

Does anyone have a solution to this?

RE: Save failed with "a deleted or invalid class id was used"

(OP)
Holy moly, after 2 hours it suddenly saved after attaching the thread to another solid body and deleting it from there!

Still, it would be good to know what causes such a thing.

RE: Save failed with "a deleted or invalid class id was used"

I don't know what causes it but I believe if you do a "Part Clean-up", you will then be able to save.

I hope this helps.

RE: Save failed with "a deleted or invalid class id was used"

The Part clean up, worked for me. Thanks for posting that.

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