New elements not automatically scanned/recognized - why?

[Iacov]

hey

i'm running docker (lsio) on ubuntu
my media is mounted via smb/cifs (fileserver is my synology nas)

i've added a new episode, but it was not automatically picked up

i've found this documentation:  Troubleshooting | Jellyfin 
but i don't find similar errors in my log

is "realtime" really..."real time" or am i too impatient? (waited for around 3 minutes before manual scanning)

how can i troubleshoot the cause? or is smb the issue?