Selection lists for 3D class definitions missing

[robbie.gray]

I noticed this problem when I tried to add insulation to my pipes and couldnt, even in overide mode i couldnt see the drop down list for options. In project setup i noticed that my selection lists for 3D class definitions seem to be gone! Can someone please help me get these properties back? I also noticed other things that were missing that shouldnt be like color assignments to diameter of pipes.

[h_eger]

Dear @robbie.gray ,

I can not say what happened to your project and its settings but from my point of view it is broken!
Not only a selection list is missing but ALL!!!
Can you go back to a backup and check if this project still has selection lists?
otherwise the only way is to create a new project.

[robbie.gray]

Oh no! I do not know what happened but my backups also have this issue. Hopefully someone else has a solution as I cannot justify restarting this project. I would much rather reenter the selection lists manually at this point.

[robbie.gray]

What is odd is that my P&ID selection lists are perfectly in tact...

[h_eger]

You can use Project Compare with Plant 3D 2022 to get the missing selection lists back.
I've never done it but if you're lucky it works.

[robbie.gray]

Wow Thank you Hartmut! This worked perfectly...what a great feature. I can even continue working in 2021 even though the compare function was in 2022. I really appreciate the help, thanks again.

[GCM_S_Hotte]

Hi,

I used the compare feature to bring picklist from an other project. The list are there but not shown in the class parent.

Is there a way to make them shown?

Thanks,

SH