Ditto, all my colors are distorted and sometimes manually changing the file color settings does not fix them!

Yes please fix. Same issue here. Not much fun to print when colours are getting off! I will start using the 23.0 version when you fix all the issues. I'm reverting back to 2017 version. You shouldn't charge monthly for something that isn't working. Please test your programs before you release them to the world!

One frustrated Illustrator user

I've uninstalled all the 2019 packages for now, as I found loads of problems with them, and I do not currently have the time to correct everything! So disappointing.

Something must be wrong with other update features. Today I draw a vetor and suddenly the screen switch to path sight. I cant get back to view at GPU.
I dont know how often I close and open Illustrator after Update to 2019 :(

YES this keeps happening to me and first I was insulted by our IT guy for not being a "well-versed" designer as he put it, so now I am trying to figure out how to fix this on my own.

I just updated the other day and have been having a bunch of problems, namely the colour settings. It keeps resetting itself to "Emulate Adobe 6.0" which makes the colours look washed out. When I reset it to my preferred setting, it changes when the application is minimized or when switching between other adobe programs. I tried setting it in Bridge to no effect.

My Illustrator 2019 was doing this even when Bridge was uninstalled; I installed Bridge in an effort to fix the problem but it didn't work.

Until they fix it, i just uninstalled Bridge. Fixed my problem. Fortunately i don't use Bridge except to sync settings so it was OK.
I tried a new custom profile, deleting the ACEConfigCache2.lst file, etc. Nothing worked but uninstalling Bridge. Illustrator and Photoshop are still keeping my profile so it is working for now.

This is really frustrating. Need a fix ASAP

Automatically reset colour to Emulate Adobe Illustrator 6.0", please help, my clients give bad words and going to reject all my work, please help with this issue ASAP

This is not quite about color synching; regardless, your question is answered another string: https://forums.adobe.com/thread/2547532

Colour settings keep reverting to 'Emulate Adobe 6.0' and the colours are showing up way off. For example, bright blues are presenting as violet. When I switch the colour settings to "North America General Purpose 2" everything is corrected - but the moment I minimize the application to use Photoshop or Indesign, the profile reverts back to 'Emulate Adobe 6.0.' Restarting the program doesn't seem to do anything, and neither does saving the settings in Bridge. Very frustrating, as I use many different Creative Cloud applications all day long for work.

John Gettler's recommendation to remove ACEConfigCache2.lst from /Users/yourusername/Library/Preferences/Adobe/Color worked for me.

Yep.. I'm getting the same thing. Also it's not retaining the printer resolution selection in the print dialogue box. I have options for 168/600 dpi and 212/1200 dpi - I print with the later, but it keeps reverting to the 600dpi setting.

The solution or workaround to get working again is to trash this color preference file:

This file:
ACEConfigCache2.lst

Located:
/Users/yourusername/Library/Preferences/Adobe/Color

You won't see the Library folder since it is hidden. To go into it choose Go to Folder... from the Go, Menu, and type in "Library" once you are in the yourusername folder.

Same here:

macOS 10.14
iMac (Retina 5K, 27-inch, Late 2015)
AMD Radeon R9 M395X 4096 MB

The issue was only happening in Illustrator. I created a new, custom profile (based on North American General Purpose 2) and selected that profile in Photoshop, Illustrator, and Bridge. Things seem to cooperating... for now.

when you work between Ai 19 kai PS 18 works fine!
I feel so lucky i kept PS 18!!

Same here!!! SO annoying!!!!

10.13.4 (17E202)
iMac Pro (2017)
32 GB 2666 MHz DDR4
Radeon Pro Vega 56 8176 MB

Same here!
macOS 10.13.4
4Ghz Intel Core i7
32 GB 1600 MHz DDR3
AMD Radeon R9 M290X 2048 MB

All Programs of the Cereative Cloud 2019 have this issue.

Same Problem!
No color workflow is possible with it anymore.

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

All Programs of the Cereative Cloud 2019 have this issue.