Chrome 72 introduced a change in how flexbox element with height: 100% renders, that caused some strange product breakage from one day to another without any code change.
The fix was simple but hard to find.flexbox elements with height: 100% now need to have min-height set, even 0 value is ok.
.list { display: flex; } .item { height: 100%; min-height: 0; /* add this */ } 
more info: https://developers.google.com/web/updates/2019/01/devtools
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