P: Color Blend Mode displays wrong colors; sometimes crashes

I understand that new compositing engine (which is on by default in Ps CC 2019) can provide faster or improved compositing but it does not work with all video cards or GPUs yet which — is why the Legacy Compositing option is provided.

New Compositing works for me with both the Radeon HD 5770 and the Intel Iris cards — both my MacPro 2010 and my MBP-r are running on High Sierra.

I'm having the same issue whenever a "color" or "hue" blend is applied to any object, shape, or layer, either as a layer or a layer style, in new projects and previously completed projects. Enabling legacy compositing fixes the issue.

I actually tried something like you described and it definitely produces strange results, though no crash on my end. If there's a color fill layer set to the Color blend mode and it's above a gray clouds layer, nothing happens even when it should. If another color fill layer is above that and its blending changes, either by different mode or opacity, then the results update to show the color blend mode for the previous layer working. But any redraw that happens on that layer causes the blend to be reverted back to the non-functioning one.

I just discovered the bug involving the blending modes (color) just now. ;(

I'm not happy about this either. Hopefully there's a fix soon.

I'm getting this too. I opened a PSD for a previous project and found my colors all wrong. I don't know what the new compositing engine is doing, but I don't like how the color blend mode has been affected. As other users have stated, it doesn't lead to predictable results.
I'll enable Legacy Compositing as well, but only to get through my current project.

It happens to me too.  Seems to happen any time the blend mode is set to Color, regardless of what kind of layer it is.  Interestingly enough, it sometimes shows up just fine at different zoom levels, but when I save the file Lightroom also shows the green squares in the image in my catalog. I hope this gets fixed soon because I'm assuming the new compositing is for faster performance!

The adjustment layer blend mode 'Color' isn't working properly.

I have both CC 2018 and CC 2019 installed on my Windows 10 System and the adjustment with solid colour using the 'Color' blend mode works correctly in CC 2018 but not in CC 2019.

Blending a red or cyan adjustment layer in blend mode 'Color' produces a grey monochrome effect on the image below. Blending adjustment layers in other colours in 'Color' blend mode produces weird colours. 

I've followed some threads here in Photoshop Family and enabled Legacy Compositing and that has rectified the problem in CC 2019. Why though?

I don't understand the first thing about Photoshop's compositing engine and why CC 2019 is different so would appreciate it if someone could explain. 

What is the difference between the legacy and non-legacy compositing?

My Graphics driver is up to date.
The issue is not present in CC 2018 which I still have installed.

Here's my OS specs

Operating System: Windows 10 Home 64-bit
Version 1803
OS build 17134.345

(17134.rs4_release.180410-1804)
Processor: Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz (8 CPUs)
Operating System: Windows 10 Home, 64-bit
DirectX version: 12.0 
GPU processor: GeForce GTX 970
Driver version: 372.70
Direct3D API version: 12
Direct3D feature level: 12_1
CUDA Cores: 1664 
Core clock: 1215 MHz 
Memory data rate: 7010 MHz
Memory interface: 256-bit 
Memory bandwidth: 224.32 GB/s
Total available graphics memory: 20409 MB
Dedicated video memory: 4096 MB GDDR5
System video memory: 0 MB
Shared system memory: 16313 MB
Video BIOS version: 84.04.36.00.71
IRQ: Not used
Bus: PCI Express x16 Gen3
Device ID: 10DE 13C2 29783842
Part Number: G401 0010

I've exactly the same problem: https://youtu.be/1sGyoe3lR0o
What I tried so far:

• uninstall video drivers with DDU;
• reset PS preferences;
• uninstall PS and cleaned everything with the Adobe Creative Cloud Cleaner Tool.

nothing worked. The application also crash without trace in the Event Viewer, I've sent 3 or 4 crash report in the past hours.

It happens with or without GPU enabled.
Using the "Legacy Compositing" solves this immediately.

I'm on Windows 10 1803 (build SO 17134.345), Intel i7 4770, ASUS Strix GTX 1080 with latest nVidia drivers (416.34).

Hope this helps to understand what the problem is.

Yes, works ok with Legacy Compositing turned on.

Here are my system specs:
Windows 10 Family 64bits
Dell XPS 8910 with 16Gb of memory
Intel Core i7 6700
Graphic card : NVIDIA GeForce GTX 1070.
1 SSD with 256 Gb
1 Harddisk with Capacity    1863 Gb