Known issue with older versions of Microsoft Edge
This article refers to the Jira and Assets versions that reached the end of support. We can't guarantee the solution described here will work on newer versions.
Microsoft Edge versions prior to 79 - 80 are unable to render the new object page in Insight 8.3.x and above.
This seems to be caused by a Javascript error (related to the Spread Operator which is only supported in the latest versions of Edge (released after Jan 15th 2020) as can be seen here: https://caniuse.com/#search=spread%20operator.
The error presents itself by saying:
SCRIPT1028: SCRIPT1028: Expected identifier, string, or number batch.js(113,121951).
To solve this issue, upgrade to the latest version of Microsoft Edge to get the browser's comparability with the Javascript code used by Insight.