Are you using this instance https://play.dhis2.org/2.37.7.1? Please did you try to clear the cache in your browser (as well as clearing the server cache from Data Administration app → Maintenance)? After clearing the server cache, retry the same steps in your browser’s Guest mode to make sure it’s not a cache issue.
Either way I think it is recommended to update to the latest patch. Please update to 2.37.8 DHIS2 patch release 2.37.8 is now available and try again!
Thanks!