BlazeMeter tests not loading in the Build Step in Jenkins v2.440.3

We’ve recently upgraded Jenkins from v2.249.2 to v2.440.3 and BlazeMeter plugin from v4.17 to v4.22.

However with the upgraded Jenkins & BlazeMeter combo, any additional build-steps for adding BlazeMeter test in a project are stuck in loading icon.
Please refer to the screenshot.

I’ve tried using different browser, incognito mode, clearing cookies/cache but nothing seems to resolve the issue.

Could someone help me how to resolve this issue please?