Unable to setup IGMP proxy to work with vlc

RouterOS Beginner Basics
1

Hi!

I have problems to setup a test for multicast with IGMP proxy.
Here is the test scenario:

Router: RB450
ROS: 3.27 with multicast package

LAN-Sender -------------- Router ----------- LAN-Receiver
Int: eth5                                    Int: eth1
192.168.181.1/24                             192.168.178.1/24
vlc: 192.168.181.10                          vlc: 192.168.178.2
mcast-addr: 224.0.23.12

My IGMP setup:

[admin@MikroTik] /routing igmp-proxy> interface print
Flags: X - disabled, I - inactive, D - dynamic, U - upstream 
 #    INTERFACE                                                      THRESHOLD 
 0  U ether5                                                         1         
 1    ether1                                                         1         
[admin@MikroTik] /routing igmp-proxy>

[admin@MikroTik] /routing igmp-proxy> print
              quick-leave: yes
           query-interval: 2m5s
  query-response-interval: 10s
[admin@MikroTik] /routing igmp-proxy>

[admin@MikroTik] /routing igmp-proxy> mfc print
 # GROUP           SOURCE          INCOMING-INTERFACE    OUTGOING-INTERFACES   
 0 224.0.23.12     192.168.181.10  ether5                ether1                
[admin@MikroTik] /routing igmp-proxy>

But I can´t see any packet arriving at vlc on receiver site (checked with wireshark).
To be sure vlc setup is correct we changed router with switch and it worked.

Any hints?
Any additional settings needed?

Regards,
Alfred

2

…after doing a reset-configuration and starting from scratch it finally works.