UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36 Edge/16.16299

Example URL:
http://versatileidea.ddns.net/leimat.fi/

Steps to reproduce the problem:
1. Browse to http://versatileidea.ddns.net/leimat.fi
2. Scroll down page and see missing content after first hide/visible element
3. For comparison, browse to live version with workaround: https://www.leimat.fi

What is the expected behavior?
The page extensively uses hide and visible elements where first opaque:0 is set, then opaque:1. Elements should slide or fade in as text blocks enter the visible page. So essentially, element should initially be hidden, then visible.

What went wrong?
Refer to  Issue 778873  where problem was supposed to be fixed but wasn't.
https://bugs.chromium.org/p/chromium/issues/detail?id=778873

The first element works correctly. After this, all other text elements using css opaque are hidden. The develpment version of the site shows the problem. The live site has had the hidden opaque setting set to 1 as a temporary workaround

Does it occur on multiple sites: Yes

Is it a problem with a plugin? No 

Did this work before? Yes 

Does this work in other browsers? Yes

Chrome version: 63.0.3239.84  Channel: stable
OS Version: 10.0
Flash Version: 

Site fails to load correctly in current Chrome and all browsers using 62/63 Chromium core (e.g. Vivaldi, Opera). Loads correctly in current versions of Firefox, Edge, IE.