Search Issue Tracker
Fixed in 2018.3.X
Fixed in 2019.1.X
Canvas Group Alpha does not affect nested Canvas UI elements when used in parent Canvas
How to reproduce:
1. Download, extract and open attached project (1109916repro.zip)
2. Open 'SampleScene'
3. Modify Canvas Group Alpha in the 'Parent canvas' Canvas to see the issue
Expected result: Both buttons are affected by the Canvas Group
Actual result: The button that is the child of the nested Canvas is not affected unless the Alpha is 0
Reproducible with: 2018.3.0f2, 2019.1.0a13
Not reproducible with: 2017.4.18f1
Fixed in: 2018.3.8f1, 2019.1.0b3, 2019.2.0a5
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Feb 22, 2019 08:29
It is a very very serious issue, Unity! Also, Unity 2019.1 is in the beta stage, so it can't be say fixed. If this is not fixed into 2018.3.X, it's going to be a problem for so many projects.
Our projects have a lot of contents, and on live. And we upgrade Unity 2018.3.0f2 from LTS for wasm boost one month ago. So we'll decide revert to LTS(it maybe a very hard way) or fix it using dirty ways. Please, answer anythings.
Feb 14, 2019 07:15
This is causing me issues too. Any update on backporting this?
Feb 07, 2019 01:56
This totally messes up my UI hierarchy and logic. I added nested canvases to improve performance following your guidelines, only to enter another world of problems. Now I have to rewrite my UI handling scripts and they will turn into a mess. This MUST be backported ASAP, I'm using 2018.3.4 and it breaks. Please make me happy and backport it in 2018.3.5 (2019.2, WTF???)
Feb 06, 2019 21:35
I see this is fixed in 2019.2, is this going to be back ported into 2018.3.5? Or is there not going to be a 2018.3.5, and the next actual release will be 2019.2? I'm still not clear how the new versioning works. All know is that this bug is buggin' me!
Jan 25, 2019 16:12
Any idea what version this is fixed for?