Disappearing / Inactive bars and panels

[Romanich]

Today I would like to share some observation on “inactive” or “disappearing” elements in the Robot model. You may also check these topics related to the described issue:

https://forums.autodesk.com/t5/robot-structural-analysis-forum/disappearing-model/m-p/5537070

https://forums.autodesk.com/t5/robot-structural-analysis-forum/urgent-elements-disappear/m-p/5823794

https://forums.autodesk.com/t5/robot-structural-analysis-forum/panels-disappear/m-p/7226691

https://forums.autodesk.com/t5/robot-structural-analysis-forum/members-disappearing/m-p/7076607

 A short description of the issue – one day, after opening the .rtd file a user may notice that some elements (bars and/or panels) represented by the dotted lines:

These elements cannot be selected using a selection frame or Select All command.

The user is able to select “inactive” elements by number or using LMB click. Also, these elements can be selected using Select dialog. After opening in new window, the graphical representation of the “inactive” elements became regular:

The user can reach the same effect for the whole model by clicking Hide inactive button on the Group tab in the Object Inspector:

However, this is not only a graphical issue. It is not possible to input numbers for “inactive” elements in the Load table. In case if the load was assigned by Load definition dialog, the load record will be with empty List field:


The Delete empty loads command from the RMB context menu will delete this load as well as other empty load records.

Opening .rtd file in Repair mode will help, but after some time the user has a huge chance to receive “inactive” elements again. After using Repair mode, I would highly recommend to check all loads, especially if in the model self-weight was defined for the part of the structure (a common approach when we have steel and concrete elements in the one common model).

Another temporary solution is to create a new project using command Geometry > Structure > select *.rtd file type > Insert from file and indicate the corrupted .rtd file.

I have submitted some examples and a short video in February 2017, but the problem still unsolved. The issue has a strong impact on load application which may lead to the serious aftereffects.

[Artur.Kosakowski]

Hi @Romanich

Do you have a path from the opening of a model till some elements not being visible on the main viewer that we could follow to reproduce this program behavior?

[Romanich]

Hi @Artur.Kosakowski,

Unfortunately, I cannot reproduce this program behavior. Usually it happens with big models. 

[Romanich]

Hi @Artur.Kosakowski,

Don't hesitate to contact me if you need any assistance to solve this issue. I will provide corrupted models if it help.

[Artur.Kosakowski]

Hi @Romanich

Please send them. We will check if they give us any information to establish the cause however this wasn't the case in the past. The key information would be what had been done before it happened.

[BorislavIvanov]

Hi, 

Is this thread resolved? I have the same issues with big models for multiple Robot Versions - 2019 2020 2021.

The same things happen without an apparent logical pattern, which is very annoying and lost a lot of time in remodelling, checking of the models.

If there's any solution please post it.

Regards,  

Borislav 

[joe.akiki45GWY]

Hi @Artur.Kosakowski ,

Is this problem  still unsolved by Autodesk ?

We don't know what's causing it besides that it happens on big models ?  Do we know how to avoid it?

The only working solution for now is opening in repair mode ? Knowing that this solution is risky as others have mentioned and we can lose some elements and loads .

I am always having the same problem, everytime i'm working on big models.

I have posted yesterday on the forum a question regarding this subject and i attached a model  on which we have the issue. (If it helps)

https://forums.autodesk.com/t5/robot-structural-analysis-forum/structural-elements-disappearing-afte...

Thank you.

[joe.akiki45GWY]

Is this problem  still unsolved by Autodesk ?

We don't know what's causing it besides that it happens on big models ?  Do we know how to avoid it?

The only working solution for now is opening in repair mode ? Knowing that this solution is risky as others have mentioned and we can lose some elements and loads .

I am always having the same problem, everytime i'm working on big models.

I have posted yesterday on the forum a question regarding this subject and i attached a model  on which we have the issue. (If it helps)

https://forums.autodesk.com/t5/robot-structural-analysis-forum/structural-elements-disappearing-afte...

Thank you.

[BorislavIvanov]

@Artur.Kosakowski , 

Anything about this problem. It's persistently occurring.

Thanks

[jd.dagregorio]

Bonjour,

Personnellement, quand sa m'est arrivé, j'ai fait ctrl+a, ctr+c, et ctrl+v dans un modele vide et propre et sa arreté le probleme.

à voir si sa marche pour vous !

Toutes mes salutations au forum international !

A.D

[rawadankoud1CRFHG]

Hello everyone, I think my teacher Eng. Fadi Al Assal has found the solution to this problem. So you should do the next steps:

1- Select all members ( by Ctrl A)

2- Go to Structure Definition -> Truss members/compression

3- An Advanced Properties dialogue box will be open, turn off the Truss members box

4- Click apply (remember to select all members)

5- Now all members are activated

The same procedure you can do when you need to inactivate members (check the inactivate box) and reactivate it.