Gmails not showing on my Pull-down notification menu

[Dgtalmasta]

hi,

i have this issue that when i receive email and don't open it immediately, it doesn't show up on my pull-down notification menu/panel 

[Tourbillon De La Vie]

Happens only with Gmail app? Other notifications stay till dismissed/viewed? 

[Dgtalmasta]

with few other apps like me SMS, Call log, Payoneer app etc.

[Tourbillon De La Vie]

Do you have All under Settings > Notifications > Advanced > Show

Do you have any app that can dismiss notifications? Like Tasker, Macroadroid etc? 

[Dgtalmasta]

Yes I Do.

No! I'm not using any app that can dismiss notifications.