Fusion crashes when opening 2D PCB

[sebastienSQA5P]

I finished an electronics project (project + schematic + PCB + 3d) yesterday evening.  Everything was fine and ok. 

Today I opened the project with the intention of exporting for manufacture. Before I could do that, I did "something" (possibly pushing new version to 3D?) and fusion 360 crashed. Now when I try to open the project or the PCB file, fusion crashes.

• I try to open just the PCB and it crashes
• I try to open a previous version (like the working one last night) of the PCB and it crashes
• I open the electronics project, it opens, it opens the schematic, but then it crashes (presumably when opening the PCB)
• I open a previous version of the electronics project and it crashes (as above)
• I am able to open the schematic (alone) ok
• I am able to open the 3D file (alone) ok
  
• I open the 3D file (alone) and press "push to 2D" and it crashes
• I am able to open the PCB file on the web and view it
• I try to "download the BRD" file from the web - but never received the email link

*each time it crashes I make sure to send the crash report.

Any ideas on how to recover my work?

[sebastienSQA5P]

Update:

so I tried to open a really old version of the PCB file and it actually opened the "latest" version instead - however there were a few drawing "arcs" missing.  I was able to save the project again (with the missing arcs) and re-open it successfully.  I tried to replace the arcs (32 in total, in pairs, creating "filled polygons") and so far so good. Saved ok.  Then I went to run the cam processor, it crashed.  I then reopened the project and it crashed again.  If I open an old version, it opens again, but those polygons are missing.

Also, if I try and create a footprint of the same polygons - they don't show up.  They do in the library editor, but they don't show up in the PCB.

Also had this interesting dialog pop up infinity times (had to force-quit to shutdown).

[sebastienSQA5P]

Second update:

This crashing bug seems to be when creating multiple small arcs with radius 30mil.

[panpan_fan]

Hi @sebastienSQA5P 

I hope you are doing well!

Sorry that you meet the crash issue.

Would you mind sending me your email address? Then I can check the crash system for you.

I will send my email address to you as a private message.

Thanks in advance!

Regards,

Panpan Fan

[panpan_fan]

Hi @sebastienSQA5P 

Today we release Fusion 360 V2.0.12887 and the issue should have been fixed.

Please have a try, thanks a lot!

Regards,

Panpan Fan