Some users may be unable to see the left sidebar in Jira new UI

Summary

Some users might be unable to temporarily see Jira sidebar in the new UI.

(Other problems may occur as dashboards loading blank and other areas of Jira)

Steps to Reproduce

1. Not easily reproducible.

Note: This can happen for various reasons, the symptom is usually missing/blank areas in the new UI.

Expected results

The sidebar and other icons should render normally.

Actual result

The sidebar and other items loads blank

Workaround

Before, contacting support try the following possible workarounds:

1. Using incognito mode may work for some cases.
2. Opening the development console and going to the network tab marking the option "Disable cache" and refreshing the page.
3. A different browser may also work.