How to fix error *Invalid* _.UNDO Current settings: Auto = On, Control = All, Combine = Yes, Layer = Yes Enter the number of operations to undo or<1>: _END?

[Ahmed_mohamedHC52L]

When placing a symbol on AutoCAD Electrical 2023 Icon Menu from a file. I get the following error. Can you help me fix it?

Here is the error I get:

[arshdeepsingh404]

Hi @Ahmed_mohamedHC52L 

Have you tried running PURGE command on your drawing?

Do you see this issue only on one symbol / one drawing / one project or is this happening for all symbols in all projects?

Does inserting from Icon menu without manually browsing still work?

I had similar issue when I was learning CUI modifications and ended up corrupting the ACADE profile somehow.

The CUI modifications that you have done, are they in the original acade profile and CUI files? Do you have any backups that you can try switching to and testing if the same issue is present in there.

[rhesusminus]

The problem is that your symbol VCB1 contains a block named VCB1, I.e. it's referencing itself.

Open the VCB1 symbol and explode all blocks on that drawing. Then purge everything.