Issues with Civil 3D as AutoCAD 2020/2021 on startup slow/stuck at Regenerating model

[tom.holmgrenKBCJU]

Hello!
We have just started noticing that we are experiencing really slow startup on our computers when starting Civil 3D As AutoCAD 2020 and 2021. When opening it stands at "Regenerating model" for almost 2 minutes until it suddenly just continues.
This has happened with the latest 2020.6 service pack and 2021.3 service pack. If we uninstall the latest service packs and try to start Civil 3D As AutoCAD it doesn't get stuck at regenerating model.

Is this a new bug or something that you are aware of?

Kind regards Tom

[pendean]

>>>.... If we uninstall the latest service packs and try to start Civil 3D As AutoCAD it doesn't get stuck at regenerating model...<<<
You answered your own question: start a support ticket through your account here https://knowledge.autodesk.com/customer-service/account-management/users-software/support-options#:~....

[Kyle-L]

Some of us are experiencing problems with 2021.3

You can look at this post for more info: 

https://forums.autodesk.com/t5/civil-3d-forum/crash-with-no-error-dialog-after-c3d-2021-3-update/m-p...

[tom.holmgrenKBCJU]

Yeah, we reverted our users to an earlier servicepack until they hopefully release a hotfix or a new servicepack.

[tom.holmgrenKBCJU]

We are still having issues with this. And also started appearing in 2022 with the same problem.. 

[klancaster7UMMV]

I am currently running 2022 without any updates and it has been working fine but I am scared that the slow down will happen if I update it to the latest patch.

May I ask what version of 2022 you have installed? Did you fully update it and did it start slowing down after a particular update?

[tom.holmgrenKBCJU]

With no updates or servicepacks everything works fine.

The issue starts appearing after the first service pack 2022.1 and still remains after 2022.1.2...

[klancaster7UMMV]

That's disappointing. I guess I will not be updating for a while.