Civil 3D 2025 - Layer Manager issue "arithmetic operation resulted in an overflow"

[MSBryan]

Product Version: 13.7.154.0 Civil 3D 2025.0.1 Update

right click to add a new layer and get the error below

"Unhandled exception has occurred in a component in your application. If you click Continue, the application will ignore this error and attempt to continue. 

Arithmetic operation resulted in an overflow."

Can use the command line to edit layers, appears a reinstall in order

[brian.strandberg]

I can't replicate the issue.  A few thoughts.  Do you see the issue if you create the new layer from the command line version of the layer command or the CLASSICLAYER command?

If you can share your drawing I can try to replicate the issue from my side. 

Thanks.

[lim.wendy]

Hi Michael,

Thanks for reaching out to the forum.

Is this specific to certain drawings? As suggested by Brian, please share the drawing so we can take a look.

Please let us know if you need further assistance.

[michael.bryan2FADE]

I'm in the process of reinstalling. It was happening in every drawing, using any template. Out of the box templates, custom templates and existing drawings were all giving the same error message.  

I have customized menus from years of working in C3D and one 3rd party add on that i've also been using for years. So this appears to be a menu issue not a drawing issue. 

I will update if it reappears.  I've never seen this type of error before, hence reaching out to the group.

[michael.bryan2FADE]

After complete uninstall and reinstallation, no customizations, no 3rd party add-ons, the problem persists. 

If I create a new drawing from the oob template, open the layer manager and right click on the name of a layer I immediately get the error message noted in the previous comments. 

[brian.strandberg]

The layer manage is intensive on your graphics system.  Try turning hardware acceleration off in the 3DCONFIG command.

I have seen this issue before (not the exact message) and it is usually memory / graphics related. If you haven't please restart your computer.

Thanks.

[michael.bryan2FADE]

complete uninstall

deleted all 2025 files from C:\Program Files\Autodesk

deleted all 2025 files from  C:\ProgramData\Autodesk

hard reboot

reinstalled with no customizations or 3rd party add-ons.

Still... if I Right click on a layer in a drawing created with the oob template I immediately get the arithmetic overflow error shown below.  

[lim.wendy]

Hi Michael,

Thank you for bringing this issue to our attention. I've gone ahead and submitted a support ticket on your behalf so that our dedicated support team can look into this matter further.

In the meantime, if you have any additional information or details about the issue you're experiencing, feel free to share them here. We'll do our best to assist you further.

[brian.strandberg]

Sorry if you already did this, but I didn't see it on your list.  Try updating your graphics drivers.  Every time I have seen similar issue with the layer palette it is graphics related.  There could be a bug with Civil 3d here, but I would eliminate the graphics first.

[michael.bryan2FADE]

Thank you

[michael.bryan2FADE]

Sorry Brian, but that didn't help, new nvidia driver updated yesterday. Issue persists. I will be getting a new computer (prescheduled upgrade) next week. Maybe this will be an issue isolated to this particular unit. I will update this thread if it that "resolves" my issue.

[wbolin]

I am having the same "unhandled exception" with right clicking on a layer within the layer manager in civil 3d 2025 (same product install and update as original post).  

I still have 2024 installed on my machine and there is no issue with 2024 civil 3d.

[KWILLIAMSL2ARW]

Just throwing my hat in the ring to say I have the same issue and get the same error. Updated the Nvidia driver for both cards in my machine last week to make sure it worked with my current software, and installed Civil3d and AutoCAD 2025 this week. Only one other person at my office uses 2025 and he gets the same error.  We are on two vastly different machines using Civil3d and AutoCAD 2023 (don't trust even number releases, so I skipped 2024) currently and it works flawlessly (well no Autodesk software has ever been flawless, but you know what I mean.)

I have uninstalled, re-installed and checked to see if there were additional updates but it appears I am up to date.

Any help is greatly appreciated.

(edited to add doc showing the error and text grab from the expanded detail button)

[wbolin]

I have the same issue.  I've tried uninstalling all autodesk software and reinstalling 2025.  It did not resolve the Layer Manager issue.  I reinstalled Civil 3d 2024 and there is no problem with Layer Manager in 2024.

[v-silvestre]

Hi Michael, you mentioned when you uninstalled you deleted the associated folders in the ProgramFiles & ProgramData, but I'm curious if you deleted the ones within the Roaming & Local Appdata folders?  Also, I know that uninstalling does not remove the Registry Keys either.  If all else fails and you're looking to uninstall again, you might want to try the steps listed in the Autodesk article (you'll have to search for the folders for C3D 2025 though since the article hasn't been updated to the current version): 

https://www.autodesk.com/support/technical/article/caas/sfdcarticles/sfdcarticles/How-to-perform-a-c...

[tcorey]

I wonder if this is related to the fact that Civil 3D 2025 uses .NET Framework 8.

[neilyj666]

@MSBryan No issues with right click to create a new layer for me - have you also installed the AutoCAD 2025.0.1 update? 

[michael.bryan2FADE]

V,

I appreciate where you are coming from and if this was a one off issue only effecting me I would tend to agree with your direction. But that being said I'm seeing quite a few other people with the same issue not to mention I have a friend in third party apps who told me they are having fits due to the new framework ACAD is built on.  

I honestly do not think a situation that requires as thorough cleansing of the pc as you suggest should be required from a new release.  

Thank for your insight though, much appreciated.

[michael.bryan2FADE]

Yes the update was included in download executable. but i see I have a V.58 whereas you show a V.72. I had done completely new download of the software after I deleted the original. Will investigate.

[neilyj666]

Yes it is the AutoCAD update to 2025.0.1 rather than the Civil uprate to 2025.0.1. May not make a difference but the Layers are a core AutoCAD thing not specifically Civil