Experiencing the same problem here too "Can't finish previewing" since updating to v23.

I'm on:
macOS Mojave
iMac (5k, 27-inch, Late 2015)
3.2GHz Core i5
16GB 1867 MHz DDR3

Exactly the same problem here with AiC2019 (v23): do anything, dialog appears saying “Can't finish previewing”, and in a short time I suffer an Ai crash.

Lot of people referring this issue:
https://illustrator.uservoice.com/forums/601447-illustrator-bugs/suggestions/33787180-can-t-finish-previewing
https://forums.adobe.com/message/10686306

My specs:
OS High Sierra 10.13.6 (17G65)
iMac (Retina 5K, 27-inch, 2017)
4,2 GHz Intel Core i7
64 GB 2400 MHz DDR4
Radeon Pro 580 8192 MB
SSD 1TB (789GB free)

V23 same error. iMac 27" mid 2010, i7, 16GB RAM.

Sorry, I forgot to add my system specs (same problem here just after updating to AiCC2019 23.0):

OS High Sierra 10.13.6 (17G65)
iMac (Retina 5K, 27-inch, 2017)
4,2 GHz Intel Core i7
64 GB 2400 MHz DDR4
Radeon Pro 580 8192 MB

Exactly this same issue here, just after Upgrading to AiCC2019 (23.0)

Not possible to work so. Thinking on downgrading to AiCC2018… :-(

Lot of people complain on this here: https://forums.adobe.com/message/10686306

Same issue here and posted it as a separate bug report. Oops.
I wonder if the 'Can't finish previewing' bug is related to the GPU acceleration rather than memory.

Since updating to Illustrator CC 2019 (V 23.0) I've been getting a program crashing bug where all of a sudden a pop up dialog appears with 'Can't finish previewing', the canvas/pasteboard goes grey and the program crashes. It's currently unusable in this state for me.

I'm on:
• macOS High Sierra
• iMac 5K 2017
• 4.2Ghz Core i7
• 64gb RAM
• Radeon Pro 580 8192mb

Thanks,
Chris

Note: having GPU Performance on or off in the settings does not help.

samer, need this fixed asap please

I'll add myself here too. Windows 10. Illustrator v23 (2019)
Crashes very frequently with same 'preview' error.

You know Adobe won't refund money. However, I'm sure they're working on it. Issue is still occurring for me. Still waiting for an update.

Installed V23.0 TODAY (17 October 2018) and got this error with three tabs open. Only other program running is Mail.

MacOS High Sierra
Mac Pro (late 2013)
16GB 1866 MHz DDR3
HDD has 172.8GB of space (out of 250GB)

Same here... 23.0 is halting my productivity with "Can't finish previewing".

when will there be a fix? and how do you go back to the old version? and will adobe refund the money for the lost productivity over the last few days??

Do you still need more info on this? I can give you a log every half hour or so if you like.

I'm having the same issues! Pain!

Same here. Went back to V22.1

Da Aldana, we don't know yet. Adobe devs are (I assume) trying to address the issue. I'm still dealing with it as well.

Hi, I've been having the exact same problem since I upgraded to Illustrator CC 2019. What should I do to fix it?

Thanks, Henrik. I'm also in communication with Anish Kumar and Ashutosh Gupta about it. Hopefully we can get this resolved and get Illustrator working tip-top sooner than later. Otherwise, I just have to work with quitting, and re-opening files in 10-15 minute increments before it crashes again.