Update child components causes Fusion 360 to hang

[justinjmarple]

When pressing update child components, Fusion 360 frequently hangs.  A loading bar in the bottom right corner appears, as if it's waiting for it to load something.  However, Fusion appears to never resolve this loading bar and effectively hangs.  I'm unable to click any other button the screen.

This occurs roughly once every 20 to 30 updates.  My internet connection is pretty reasonably stable (15ms ping, 100+ mbps). 

When this occurs, I have to force quit Fusion and restart. 

See attached screenshots, thanks!

[justinjmarple]

Also OS: macOS Catalina 10.15.6 

[klij0012]

It is possible that you just need to be patient. I have been working with very large files, where sometimes I have had to wait 15 min+ for a single action. It would also seem to be stuck, loading on the green bar, but with enough patience, eventually it would succeed.

[justinjmarple]

I've left this on overnight in the past and it never gets out of the hang, unfortunately.  

This is anecdotal, but talking to some friends it sounds like they've run into the same problems on Mac, except more generally for other operations past just updating child components.  These could be a case of more patience needed, though I'd argue if something is taking 15+ minutes to compute (especially without any way to abort and when nominally it doesn't take 15+min), that's not a very good user experience and should still be considered a bug. 

[klij0012]

After running an all-nighter, I guess you could conclude that something weird is definetly going on. I hope someone else has experience with the problem you are having, and knows a fix.

I don't fully agree with 15min+ runtimes being a Fusion 'problem', but that's maybe just me. I have 0 faith in my computer's power, so I figured that was the bottleneck. You could be right with it being a bug though, I am not sure. 

[justinjmarple]

To clarify, I mean to say if an operation nominally takes, say, 30 seconds, but 1 out of 20 times it takes 15 minutes, I'd consider that unacceptable.  

If there is anything I can do to help track down these sort of bugs, let me know.  I know there is the "send error report" dialog after a crash, but I'm not sure if that's still useful in the case of a hang & being required for force kill the program. 

[Steven_Gao]

Can you help to share the dataset to us for further investigation? If your dataset is confidential, you can send it to my mail box(mingwei.gao@autodesk.com) and we'll use it for internal testing only.

Thanks,

Steven

[peter.benne]

Has there been a solution to this yet? I'm running into the same issue.

[productionCQTWN]

Hi, I'm having the same problem with an assembly. Where about 1 in 4 times I try to update a child component fusion will "hang" indefinitely. 

Any recommendations on how to avoid this?

Cheers,

Ben

[justinjmarple]

I unfortunately still have this problem and haven't found a solution.  Nowadays I try to make subassemblies a single file instead of multiple inserted parts to avoid this bug, but still run into all the time since it's not often feasible/scalable to design entire projects in a single file.  

[g-andresen]

Hi,

If the data is not available for analysis, as @Steven_Gao  suggests, it will not be possible to find the cause.

günther

[justinjmarple]

We did share the project with Autodesk and they weren't able to reproduce the bug on their side unfortunately.  

[Steven_Gao]

Thank you @justinjmarple for sharing the dataset for investigation! Yes, unfortunately, I cannot reproduce the problem with that dataset on my side. If anybody can share more dataset about this problem. We can do more investigation of it. 

Thanks,

Steven