Illustrator 2017 unexpected error when saving

[torgeirb85900207]

I am getting an unexpected error dialog when I try to save a file in Illustrator 2017. It seems to happen after I add a few layers and use the pen tool. I had to roll back to the previous version and that works fine. Wondering if anybody else has had the same challenge. On a win 10 surface.

[Peteris Karklins]

You don't like how we work and how fast we fix problems?! Since Creative Cloud we are very low on budget! You pay only 50$ a month - what do you expect?! BUT! We have a special place, where all is fixed, but you can not talk about it! Be quiet and beta test (cause we fired all our testers just like Microsoft did - the new trend) or we will release the sitthy programs, like we do now. 
Adobe - Crowdwork you pay for™

Fcuknig awesome!!! Thanks a lot!

[lizetta132]

Come on people just get it fix!!

[Ser2016]

I had the same issue/nightmare in Illustrator CC 2017, but what did it/fixed for me was "...deselect the pdf compatibility..." and this blog as well, thanks and I hope it helps"

Error "An unknown error has occurred" when you save an Illustrator CS2 file (Windows XP) - Support K...

[JackettHaus]

I've lost about 8 files and 20 hours because of this issue over last week.  I've had locked layers in all of them. The files save but then when I open they are the old file or the file I saved doesn't exists. Thanks for the thread so that now I know to unlock everything. Hey adobe you should give all of us paying customers a couple of months free since you've cost me hundreds of dollars in work.

[Nana23]

"The files save but then when I open they are the old file or the file I saved doesn't exists."

I am having the same issue on a Mac Book Pro and running the current OS . I don't know if it was the latest update or what.  I lost almost an entire days work. I am now trying to save the files as pdfs for the printer and NADA