Multiple displays at different resolutions canvas scaling issue

After updating unity from 2018.3 to 2019.2, we are having issues with the canvas scaling on secondary monitors. I've made an example scene and it seems to be happening because our secondary display (1280 x 768) is a much different resolution from our main display (1080 x 1920). Not only does the secondary canvas scale wrong but also a portion of the screen is completely cut off. This only happens in builds.

Steps to reproduce:

1. Set up device with multiple monitors with different resolutions
2. Make Project with multiple canvas'
   
3. Set each canvas to each display
4. Activate all displays on startup
5. Make build and run on device
6. Notice canvas scaling / cutoff issues

Steps to reproduce with Example project:

1. Set up device with two monitors with different resolutions
2. Make build and run on device
3. Notice canvas scaling / cutoff issues

Unity Version: 2019.2.3f1
OS: Windows 10
Main Display Resolution: 1080 x 1920
Secondary Display Resolution: 1280 x 768

I've attached pictures of the secondary screen as well as the example project. Any help would be greatly appreciated!



Before Update:
After Update:

 

Hi
Did you found a solution? I have the exact same problem. Also with 2019.3.

 

We found that the issue stopped happening passed a certain unity version, we're currently on 2019.2.19f1 and it's not happening.