Inventor Frame Generator not updating with sketch Newpost

[stevenL2ZFM]

Hello,

We have recently updated from 2019 to Inventor 2021.2

Frame generator assemblies randomly stop responding to changes to the driving sketch. There is another post with this same issue that is marked as solved. This issue is not solved and that solution does not work.

We now have multiple frames that have randomly stopped responding to changes to the sketch. I cannot identify any pattern as to why this happens. The only way it appears we can get frames to respond to the sketches is to either, delete and remake the affected memebers or select the "Change" command and rotate or move the member then move it back for it to position correctly on any member that was effected. And sometimes that does not effect a length change. After these "fixes", the frame will continue to NOT respond sketch changes.

We have tried Rebuild all from every level.  We have tried various levels of detail changes as the previous post suggested.  (in nearly all cases, there was no extra level of detail created.) 

This tool not working is a massive problem. For every Frame that stops working properly, design time sky rockets....  PLEASE HELP !!

[johnsonshiue]

Hi Steven,

That is interesting. I thought you contacted Subscription Support and reported INVGEN-49586. I guess we have another customer seeing the same problem then. It had been documented as an article (see below).

https://knowledge.autodesk.com/support/inventor/troubleshooting/caas/sfdcarticles/sfdcarticles/Frame...

Many thanks!

[stevenL2ZFM]

We are pulling our hair out with all these frames that stop responding.......  Has the issue been identified?  Am i supposed to do something beyond ths post?  We are losing a lot of design hours rebuilding frames.....  HELP AUTODESK !!!

[johnsonshiue]

Hi Steven,

I am sorry for the problems. I just checked the defect status (INVGEN-49586). It seems that there is a solution. But, I am not sure if it can be ported to 2021 update. I am double-checking with the project team. I will let you know what I find.

Many thanks!

[gcoombridge]

I've encountered this issue today with a large frame made of custom library elements. It appeared to start when I replaced some non-CC members that were acting as trim faces for FG sections. There was a graphical error and inventor crashed. Now the assembly shows no errors but the frame no longer responds when the sketch is altered.

As per @stevenL2ZFM's comments above - I can fix this one but if it is ongoing it will be a major issue

[gcoombridge]

I spent an hour trying to restore the assembly and discovered that although I had removed the end treatments associated with the replaced faces and the elements themselves were not in error - if I deleted the non-FG parts that I had replaced the associativity returned. Good news for me - the lack of any error messaging is concerning though.

t doesn't sound like your problem @stevenL2ZFM because it is occurring regularly.

[stevenL2ZFM]

Hi, @johnsonshiue  Thanks for continueing to look into this. This issue is a nightmare at my office. We have spent hundreds of hours dealing with this.... It needs to be fixed Yesterday.

I find that once the frame "breaks", it never works correctly again. 

• Deleting a member and replacing it will place it at the correct location but it will not repond correctly after that.
• Changing a member and adding an offset and then removing the offset can fix its location. Yet changing the member will not fix a length change.
• The only way to "fix" the frame is to delete it completely and start new. 

When the frame is small and in a concept phase, that can be an option. When the frame is very large with hundreds of end treatments and multiple sub assemblies, this BROKEN aspect of Inventor is a catastrophic problem.  As i mentioned, this issue has costed our company countless hours in design time. 

Autodesk should refund our licensing fees. At least that would cover some of the losses we are enduring with this issue that has been occuring since we upgraded to 2021.     

[johnsonshiue]

Hi Steven,

I am very sorry for the trouble. Like I mentioned earlier, we are actively working on a fix. Did you escalate the issue through Subscription Support or the reseller? Forum discussion is more for tips and tricks. It is not meant for escalating a critical issue like this.

Many thanks!

[stevenL2ZFM]

Hi. I did not escalate. Seemed with the link you provided to this issue already being escalated from another user, i didnt think i needed to.

Any updates with this statement from earlier? Also, by saying the solution cannot be ported to 2021... what does that mean?

---

@johnsonshiue wrote:

 I just checked the defect status (INVGEN-49586). It seems that there is a solution. But, I am not sure if it can be ported to 2021 update. I am double-checking with the project team. I will let you know what I find.

[johnsonshiue]

Hi Steven,

Not all fixes can be retrofitted. I did check with the project team and see if the fix can be applied to 2021.x update. The answer is yes. It can be done.  We are in the process of including the fix in 2021.3 update (avail some time in April). If you cannot wait, you do need to escalate and request a fix. Again, I am very sorry for the delay.

Many thanks!

[gcoombridge]

@johnsonshiue regarding the fix for this, have the support team identified the cause or a particular workflow that is contributing to it? I have just had a second frame do this and unlike my post above end treatments is not the cause (none were applied). 

[stevenL2ZFM]

Hi.  I cannot find any rhyme or reason to how or when or why a frame breaks. Sometimes they work for a while, but it seems they all eventually break. We just had a semi-large assembly with many end treatments and demoted assemblies break. It pretty much had to be rebuilt.. it was a costly disaster.  Until it is fixed, all designers at our firm have stopped using it do to the potential of major design time loss.  I have an escalated ticket with this issue and was told hopefully in April it will be fixed.... 

[johnsonshiue]

Hi Steven,

I have some update to share. The fix is still in progress. I have verified it on our latest internal build targeting 2021.3 update. The cases you shared here should work. The update will be available some time in April. I apologize for the delay and all the trouble the issue has caused. It should not have happened in the first place. I am very sorry!

Many thanks!

[Apollo_Tamworth]

Hi John

I'm encountering the same issue again.

In my workflow, I always create a simple part file called "Data File", which serves as a central reference for all measurements, calculations, and key parameters. The rest of the parts in the assembly are linked to this file. Whenever a parameter in the Data File is modified, updating the model automatically adjusts the assembly to reflect the new values.

Since my sketches are parametric, any change to a dimension-affecting parameter should seamlessly update the overall frame size. However, I have experienced this issue intermittently, and today it occurred again—bringing me here.

Each time it happened in the past, I assumed it might be a mistake on my part, but now I am certain this is an Inventor bug. I have attached the affected files and would greatly appreciate it if you could review them and provide any insights or potential solutions.

Explanation of the Attached Files:

In the Data File, if you run the rule, it allows you to update all the parameters from one model to another. As a result, the frame size should change accordingly. However, what actually happens is that only the sketch updates, while the I-frame remains unchanged.

I should also mention that I consistently use the same AS standard library for hollow sections, and this issue has occurred multiple times. While I can resolve it by creating a new assembly (which is relatively quick in this case), I am concerned about how we would handle this problem in larger, more complex assemblies, where the time and cost implications could be significant.

Looking forward to your input.
Thanks in advance!

[Apollo_Tamworth]

Apologies for the double message...

I restarted my system twice, and the issue did not occur again. This confirms my suspicion that it is indeed an Inventor bug. I'm now absolutely certain that this is a software-related problem rather than a user error.

Let me know if you have any insights on this. Thanks again!

[johnsonshiue]

Hi! No worries! It does sound like a bug to me but I cannot reproduce the behavior on my machine. Please install 2025.2.1 update, since you are still on 2025 RTM build. The issue may have been fixed in one of the updates.

Many thanks!

[JRodriguezDe]

Had the same problem, edit the sketch, frame does not update automatically. Realice that in the assembly file linked to the edited sketch, I can update the frame with the global update icon up in left side of the screen. Use global update not local update, see attachment. Using autodesk inventor professional 2015. 

[Apollo_Tamworth]

Thanks, @johnsonshiue, for your response.

I’ve already updated to 2025.2.1, but the issue still persists. What makes it more complicated is that it doesn't happen consistently. The problem occurs intermittently—even within the same assembly.

Sometimes, changing a parameter triggers the issue, and other times it doesn't, even when working with the same file. It’s not something I’ve been able to reliably reproduce across different assemblies either.

[dhrecuk]

Had same issue, solution for me doesn't make sense and I'm not 100% sure what i did but it worked ... all I did is right clicked on "Frame 1753...." and toggled Adaptive until Update icon appeared and after clicking it updated the model.