Sharepoint no sync for userdata

Hallo together,

I tried to do a Employee page with SP Modern Search.

So far so good and everything is working.

Now the AD Userdate got corrected and Emails like Max.Mustermann... got changed into max.mustermann...

Deltasync had done everything and AAD are synced but the Sharepoint Search are not interested in and still shows Max.Mustermann...

And i cant find a way to start that syncjob.

Anyone hint me in the right direction ?