User Deactivation

Hi All 

I have a requirement user wanted remove some user from entire Env Like Dev Env so i have deactivate the user account and remove from Groups and inactive that from database also Sync record.  and we have one UI where we make search bar filter in the search bar we used pickerfield. I have done all these process that i have explained in the above. and when i go to search bar still i am getting user name that i have already deactivate from appian account remove from groups and inactive from database. Can you tell me how we can fix this issue.