Fusion 360 Hanging on Startup

[sean.tapscott]

20201222T150418 E Call to OSSService::downloadFile failed with Status: Not Found. Result Code: 404. extraInfo:C:/Users/seant/AppData/Local/Autodesk/Autodesk Fusion 360/RG4WPC6S7X3Z/SavedNotifications.json, ossUrn=urn:adsk.objects:os.object:fusion.prefs.login/RG4WPC6S7X3Z_notificationsTEST.json
20201222T150418 I 1608667458242 1608667458474 5242880 8 16 60000 urn:adsk.objects:os.object:fusion.prefs.login/RG4WPC6S7X3Z_notificationsTEST.json 7162247753407296256 404 Not Found

This is the only error I can find when it hangs.  This appears to be related to some kind of fusion 360 preference, but the SavedNotifications.json file doesn't exist. 

I already ran a clean install, and it started working again after the clean install.  Then I restarted Fusion 360 to load in a new font, and it happened again.  Something to do with the local cache. 

[sean.tapscott]

Wiped again, started working, but starting it a second time yields another error.  What is this SavedNotifications.json tool library?  I've disabled the Teams Feature Notifications, but it seems to still be calling and looking for this tool. 

[sean.tapscott]

The problem continues.  just hung again.  I can't even share a public link to a model.  Completely nonfunctional.  

[sean.tapscott]

When I "Analyze wait chains..." on the Not Responding Fusion360.exe process from inside Windows' Resource Monitor, it says there are 6 threads all waiting on network activity to complete.  My AppLogFile is full of 

20210322T153707 I Request(https://f360sc-p-ue1.api.cosv2-p-ue1-dn.autodesk.com/api/v1/sessions/8558044) - workflow:SLM_heartbeat attempt:0 status:200 requestId:f360_SLM_heartbeat__1-6058f1e2-5e979f071ddf409a9ffe1700
20210322T153807 I Request(https://f360sc-p-ue1.api.cosv2-p-ue1-dn.autodesk.com/api/v1/sessions/8558044) - workflow:SLM_heartbeat attempt:0 status:200 requestId:f360_SLM_heartbeat__1-6058f21e-3fd43f8ba8d54f27be3fc2ae
20210322T153907 I Request(https://f360sc-p-ue1.api.cosv2-p-ue1-dn.autodesk.com/api/v1/sessions/8558044) - workflow:SLM_heartbeat attempt:0 status:200 requestId:f360_SLM_heartbeat__1-6058f25a-fbe2a2ea2c1a4317a8641a7c
20210322T154007 I Request(https://f360sc-p-ue1.api.cosv2-p-ue1-dn.autodesk.com/api/v1/sessions/8558044) - workflow:SLM_heartbeat attempt:0 status:200 requestId:f360_SLM_heartbeat__1-6058f297-056a9170aae5416c97baec50
20210322T154107 I Request(https://f360sc-p-ue1.api.cosv2-p-ue1-dn.autodesk.com/api/v1/sessions/8558044) - workflow:SLM_heartbeat attempt:0 status:200 requestId:f360_SLM_heartbeat__1-6058f2d3-73c50c717ac044dc80c79085
20210322T154208 I Request(https://f360sc-p-ue1.api.cosv2-p-ue1-dn.autodesk.com/api/v1/sessions/8558044) - workflow:SLM_heartbeat attempt:0 status:200 requestId:f360_SLM_heartbeat__1-6058f30f-810870e2bd314099ade8dcbd
20210322T154308 I Request(https://f360sc-p-ue1.api.cosv2-p-ue1-dn.autodesk.com/api/v1/sessions/8558044) - workflow:SLM_heartbeat attempt:0 status:200 requestId:f360_SLM_heartbeat__1-6058f34b-98f7aa83f7a7418ab878707f
20210322T154408 I Request(https://f360sc-p-ue1.api.cosv2-p-ue1-dn.autodesk.com/api/v1/sessions/8558044) - workflow:SLM_heartbeat attempt:0 status:200 requestId:f360_SLM_heartbeat__1-6058f388-1f271aecd2d247aa8c73bc53
20210322T154508 I Request(https://f360sc-p-ue1.api.cosv2-p-ue1-dn.autodesk.com/api/v1/sessions/8558044) - workflow:SLM_heartbeat attempt:0 status:200 requestId:f360_SLM_heartbeat__1-6058f3c4-57f8347dcb7045f8b395c7a6
20210322T154609 I Request(https://f360sc-p-ue1.api.cosv2-p-ue1-dn.autodesk.com/api/v1/sessions/8558044) - workflow:SLM_heartbeat attempt:0 status:200 requestId:f360_SLM_heartbeat__1-6058f400-34dbcaa292c44d91b6a52fdc
20210322T154709 I Request(https://f360sc-p-ue1.api.cosv2-p-ue1-dn.autodesk.com/api/v1/sessions/8558044) - workflow:SLM_heartbeat attempt:0 status:200 requestId:f360_SLM_heartbeat__1-6058f43c-bf6b0f06d7564acdaaeb5b7c

And I can't select SavedNotifications or the program hangs. 

[sean.tapscott · Accepted solution]

After reinstalling using the clean uninstall program, I was able to finally get it to work.  Then it crashed next time I closed and reopened it, and then again,and again and again, each time requiring a complete removal and reinstallation.  

It had something to do with my saved notifications, according to the application logs, although it would hang when I tried to view those as well.  

So what I did was, on the next reinstall, I put Fusion 360 into an offline state.  Then I viewed my saved notifications, and cleared all the ones that were there.  Then I put it back into an online state.  I was able to resolve it. 

[mstrater]

Are you still able to reproduce this issue on the latest version of Fusion?

[sean.tapscott]

No, but the situation that originally caused it had something to do with me having a Small Business personal license, and my friend running a trial of Fusion 360 teams, and trying to share projects.  Then Fusion 360 closed, tried to "update" itself and then started hanging on second startup. 

And, as described, it only stopped because, after a fresh reinstall, I took Fusion 360 offline and cleared the notifications while it was offline. Although whether or not that was related to an update could be debated, as I don't know what kinds of updates had been applied on the last fresh reinstall. 

[mstrater]

Ok thanks. The notification hanging issue was known, but it should be fixed in the latest build. If you see anything like that again, reply to me here and I can try to look into it.

[sean.tapscott]

The problem has returned in what I assume is the latest release.  I can only open the application right after a first fresh installation, and even then, I can't touch the Notification area without a complete freeze, closing the app, and then having to reinstall it entirely once again. 

[mstrater]

@sean.tapscott that's concerning. I'm sorry you're still hitting it. Would you be willing to attach your Fusion diagnostics data so I can take a look? I'll also look through the relevant code independently to see if anything looks like it could cause this.

[sean.tapscott]

Thanks for the reply.

Do you want the diagnostic data from after the freeze or before?

I have the app logs from the user profiles folder, but I don't think
diagnostic data will be obtainable after the freeze.

[mstrater]

@sean.tapscott Any and all app logs would be useful, especially if you know approximately when the issue started again.

[sean.tapscott]

Here are some logs from the day of the issue.  These are the AppLogFiles.  No diagnostic files could be grabbed at the time.  

I'm still tempted to believe this is related to workgroups, as my one friend and I were trying to collaborate so he created a Fusion360 workgroup, but we didn't actually have licenses for it, and it forced me to reinstall a new version(6-8 months ago).  That workgroup information is still sitting in my "Data Panel" profile dropdown, but I set Fusion 360 back to using Single User storage. 

I'm not sure what logs would help, as I can't see anything relevant, and not really any significant errors either.  Are there are logs that would be helpful to you that I can gather manually?

[sean.tapscott]

And one more from just now when I was exploring the Data Panel dropdown menu, froze again.   You can see it mentioning Notifications right as it freezes again.  

[mstrater]

@sean.tapscott Thanks for the logs. It's hard to say for sure what's going on, but this all seems similar to other reports we've been getting about Fusion hanging on startup and it so far appears to be related to some kind of network communication issue. Some questions that might help narrow it down:
Are you using a proxy?
Are you able to use Fusion in offline mode better?
Do you have another computer and/or network that you can try on to see if the same problem occurs there?

[sean.tapscott]

Not using a proxy.

I can test offline mode.

i switched from a Windows 7 computer to Windows 10 because I was told
Windows 7 was no longer supported. So, no other computer now.


I'm using coaxial internet, with 900mbps down and 38mbps with low
bufferbloat.


I'll keep an eye out for when the issue occurs again, but if there are
other logs that may show more data, just let me know and I'll see if I can
track them down.

[xmaspako]

I'm esperiencing the same hanging on startup.

My config:

• Win11 x64 on Samsung SSD 980 Pro (NVme PCIe 4.0)
• M.B. Asus X570-P
• AMD Ryzen 7 5800X
• 32GB RAM 3.2GHz
• GPU AMD Radeon RX 6700 XT (12 GB DDR5)

This issue started just after the last Fusion 360 update (currently 2.0.12392).

I took a look to log files located in my user folder under autodesk/fusion and I found out several "timeouts" and "Call failed" related to https://js.prd.fusionapi.autodesk.com/hds/fusion360.json. 

I attached the last log file.

I hope this could be usefull to undestand what's going wrong.

I've already reinstalled the software after a clean uninstallation. But, it was useless.

Thanks in advance.

[mstrater]

@xmaspako Can you try logging in on a different computer and/or a different network and let me know the results?
We've been unable to reproduce this issue internally, and suspect it's a network configuration issue.

[xmaspako]

You're right.

If I try on different network, and different PC, I don't experience this issue.

What do you think it could depend on?

 I didn't any change to my network setup. I contacted also my ISP and, after an MX Lookup, it seems that my IP is blacklisted by BARRACUDA, SORBS SPAM and Spamhaus ZEN. Do you think it could depend on this?

I'm getting crazy... almost 15 minutes to start up it's absolutely uncomfortable.

Thanks in advance for your time.

[xmaspako]

Hi,
in addition to my previous post, I can say that using the SAME network but DIFFERENT PC, the issue doesn't happen. Thus, it seems to be related to operating system or such Win11 compatibility.
But, please consider that this behaviour started AFTER my upgrading to Win11. So, I have no idea what's changed.
What kind of data can I collect to give you useful details?