SOLVED: Mount several NAS folders

[Infectftw]

Hi guys,

my hardware:
Homeserver: HP Elitedesk 800 G5 Mini with Proxmox
NAS: Synology DS418 with 2 HDDs (one for movies and one for series)

I installed Jellyfin with the official bash script in a proxmox container.
I created a folder jellyfin with mkdir
I installed cifs-utils
I edited the /etc/fstab file with my mounts:
//192.168.178.3/ds418-filme /jellyfin cifs credentials=/home/.smbcredentials,uid=1000,gid=1000 0 0
//192.168.178.3/ds418-media /jellyfin cifs credentials=/home/.smbcredentials,uid=1000,gid=1000 0 0

Unfortunately it only works for one of the mounts.
When the movie mount is working, than the series (418-media) does not work and vice versa.

I think the problem is, that both folders are mounted in the same /jellyfin folder.
Could this be?

Can you help me to fix the two mount commands?
I assume the easiest way would be to have both folders (movies and media) on one HDD, but the HDDs are too small, so this is not a solution for me.

Thanks!