No other vlan than 1 possible in snapshot?

For Developers
1

As soon as I switch the lan interface from switch.1 to switch.11 in below config (this is the only config change), I loose access to the switch (Of course I tried via port 7, which is in vlan 11).
It seesm like something is broken with vlan handling in snapshot or at least in snapshot on this device (realtek target)

This is the config:

config interface 'loopback'               
        option device 'lo'                     
        option proto 'static'
        option ipaddr '127.0.0.1'         
        option netmask '255.0.0.0'             
                            
config globals 'globals'                  
        option ula_prefix 'xxx::/48'
                            
config device 'switch'                    
        option name 'switch'  
        option type 'bridge'  
        option macaddr 'xxx'
        list ports 'lan1'     
        list ports 'lan2' 
        list ports 'lan3'       
        list ports 'lan4'     
        list ports 'lan5'            
        list ports 'lan6'             
        list ports 'lan7'     
        list ports 'lan8'            
        list ports 'lan9'      
        list ports 'lan10'    
        list ports 'lan11'    
        list ports 'lan12'    
        list ports 'lan13'   
        list ports 'lan14'    
        list ports 'lan15'
        list ports 'lan16'   
        list ports 'lan17'    
        list ports 'lan18'    
        list ports 'lan19'                
        list ports 'lan20'

config bridge-vlan 'lan_vlan'             
        option device 'switch'                 
        option vlan '1'     
        list ports 'lan1'                 
        list ports 'lan2'     
        list ports 'lan3'     
        list ports 'lan4'                 
        list ports 'lan5'     
        list ports 'lan6' 
        list ports 'lan8'       
        list ports 'lan9'     
        list ports 'lan10'           
        list ports 'lan11'            
        list ports 'lan12'    
        list ports 'lan13'           
        list ports 'lan14'     
        list ports 'lan15'    
        list ports 'lan16'
        list ports 'lan17'    
        list ports 'lan18'   
        list ports 'lan19'    
        list ports 'lan20'
                             
config device                 
        option name 'switch.1'
        option macaddr 'xxx'
                              
config interface 'lan'        
        option device 'switch.1'          
        option proto 'static' 
        option ipaddr '192.168.40.10'
        option netmask '255.255.255.0'    
        option ip6assign '60'
        option gateway '192.168.40.1'
        list dns '192.168.40.1'           
                             
config bridge-vlan                   
        option device 'switch'            
        option vlan '11'     
        list ports 'lan7'

rest is default config

device: D-Link DGS-1210-16

tested Snapshots:
OpenWrt SNAPSHOT r25905-0db68a789f from today
the one from 2nd April

When I do the exact same on 23.05.3, all works as exspected