# Tip: When Dealing with an "Exception occurred. Entity NOT saved: xxxx" Error on Save

**URL:** http://forum.qcad.org/t/tip-when-dealing-with-an-exception-occurred-entity-not-saved-xxxx-error-on-save/11970
**Category:** QCAD Tips and Tutorials
**Created:** [August 19, 2026, 3:04pm UTC](http://forum.qcad.org/t/tip-when-dealing-with-an-exception-occurred-entity-not-saved-xxxx-error-on-save/11970 "2026-08-19T15:04:56Z")
**Posts on this page:** 1
**Page:** 1

<div class="post-metadata">

### Author: ![djm](http://forum.qcad.org/letter_avatar_proxy/v4/letter/d/7feea3/32.png) [@djm](http://forum.qcad.org/u/djm)
#### Post date: [August 19, 2026, 3:04pm UTC](http://forum.qcad.org/t/tip-when-dealing-with-an-exception-occurred-entity-not-saved-xxxx-error-on-save/11970/1 "2026-08-19T15:04:56Z")

</div>

Just a tip

When you have one of those pesky e.g. “Exception occurred. Entity NOT saved: f934” errors when you save a file.

Don’t forget to check in Blocks…

When you use the Misc \> Select \> By Handle to try and find the entity but the result is there is nothing selected in your drawing (even though the Command Line has a result like e.g. “Object selected: 14435”.

Turns out that I had a corrupt entity in a Block.

Steps to isolate:

- Duplicate the drawing

- Select ALL drawing entities and delete.

- Try to save and if you still get the error.

- Delete Blocks one by one saving at each step.

- If/when the error goes away undo the last Block deletion and open the block to edit.

- Misc \> Select \> By Handle

- Zoom into the selection in the block and review/delete.

- Save

- Error gone.

Go back to the original drawing and repeat the search in the Block that had the and delete the entity.

If anybody has a better process please add a reply.