After the update, google chrome (ver:77) from (ver:76) expanded row not working as expected. Before update google chrome expanded row of 'angular-UI-grid' was working properly, However, It's working fine in other browsers like Mozilla Firefox and Microsoft Edge and also working in older Version(76.0.3809.132) of chrome.
Before the update, google chrome expanded row open with proper space and expand, other row showing after expanded area.

After the update, google chrome expanded row open to overlay other rows.

cssstyles applied to the element that is causing the problem. Otherwise, how could we help you ?