No Mail-Icon in Status bar with Samsung-Phones


after we updated our GMS to Version: 14.2.0 Build: 279, we have the problem that there is no Mail-Icon (when you receive a new message) in the Status bar. This happens just with Samsung-Mobile-Phones.

I tried to change the sync-options on my Phone to "every 5min" and "push" but nothing happens. Also i unchecked and checked the option "show notification in status bar" on my phone.
If i send an email to my privat accounts ( imap and pop3 also configured in my default Samsung E-Mail App ) the mail-icon appears. so i think its not a samsung-problem.

The email-count at the email-app-symbol is correct when i get mails. just the icon in the status bar is missing.