User unable to view report in Dashboard - ERROR: Cannot generate the report. Chart series generation failed nullDescriptionWhen user view reports on dashboard a local cache created on instance, Sometimes when the cache is not cleared on the instance, this issue occurs.This occurs only with direct logins(Login with specific user credentials) as the cache are local to the user account. If Admin/TSE impersonating the the user account they may see the report in dashboard as the cache is different per user account even though impersonated.Release or EnvironmentNot environment specific.Instructions1: Please check in different browser and with incognito mode. (Login with specific user) 2: If issue persists please advise Admin to to cache flush on the instance (replace "instance_name" with actual instance name on the provided link) by https://instance_name.service-now.com/cache.do 3: Please note cache flush may impact performance for a few min. please prefer off business hours or weekends.