(Case 1151955) Bug in Unity 2019.1 where you can't update color of an UI image?

I have a weird issue, and I think it started when I moved my project to 2019.1.0f2.

I'm working on an inventory system, where I have item slots, and I set the color of a slot to alpha = 0, when there is nothing in the slot.

Some slots doesn't update the color or alpha of the UI image. However if I change the sprite to something else, I can suddenly change the color. This feels like a bug to me. Please see the video and let me know if there's something I can do to fix this.

I can confirm that the issue happens also in 2019.1.1f1, but not if I downgrade the project to 2018.3.14f1.

 

Put your case number of your bug report in the thread title. This sometimes helps Unity engineers to check up on these more quickly.

 

Thanks, I filed a report and linked to this forum thread in it, haven't recieved the case number yet, but will update it once I do.

 

I can't see how to change the thread title, where do I do that? The case number is 1151955.

 

Top-right corner.

 

Thanks, that wasn't very easy to find