Galera SST rsync wants to replicate snapshot directory

A new Galera Cluster was installed with some hosts and the MariaDB-Datadir is on an NetApp storage with NFS access.
The bootstrap of the first node worked fine but then at the second node its impossible to start the mariadb.service because of endless restart of the service and permissions denies of the .snapshot directory of the mounted share.

rsyncd[24966]: rsync: [receiver] open "/.snapshot/hourly.2023-05-23_1005/aria_log.00000001" (in rsync_sst) failed: Permission denied (13)
May 23 10:12:22 rsyncd[24966]: rsync: [receiver] open "/.snapshot/hourly.2023-05-23_1005/aria_log_control" (in rsync_sst) failed: Permission denied (13)
May 23 10:12:22 rsyncd[24966]: rsync: [receiver] open "/.snapshot/hourly.2023-05-23_1005/debian-10.5.flag" (in rsync_sst) failed: Permission denied (13)
May 23 10:12:22 rsyncd[24966]: rsync: [receiver] open "/.snapshot/hourly.2023-05-23_1005/galera.cache" (in rsync_sst) failed: Read-only file system (30)
May 23 10:12:22 rsyncd[24965]: sent 48 bytes  received 374 bytes  total size 61
May 23 10:12:22 rsyncd[24964]: sent 1815 bytes  received 3493527 bytes  total size 3486785
May 23 10:12:23 rsyncd[24966]: rsync: [receiver] open "/.snapshot/hourly.2023-05-23_1005/grastate.dat" (in rsync_sst) failed: Read-only file system (30)
May 23 10:12:23 rsyncd[24966]: rsync: [receiver] open "/.snapshot/hourly.2023-05-23_1005/gvwstate.dat" (in rsync_sst) failed: Read-only file system (30)
May 23 10:12:23 rsyncd[24966]: rsync: [receiver] open "/.snapshot/hourly.2023-05-23_1005/ib_buffer_pool" (in rsync_sst) failed: Permission denied (13)
May 23 10:12:23 rsyncd[24966]: rsync: [receiver] open "/.snapshot/hourly.2023-05-23_1005/ib_logfile0" (in rsync_sst) failed: Permission denied (13)