Your config is confused LOL.
So its clear you only have one vlan and its being put on etherport 5.
Not sure why you need a vlan then??
The problem is you think you can send untagged vlan data on ethernet 2 and at the same time send the bridge subnet traffic on ethernet 2.
So do pray tell what device do you have on the other end of ethernet two that will be able to pick out two streams of untagged data???
or vice versa how will the router know where incoming traffic is supposed to go…???
Where did you get the idea you had to UNTAG bridges???
As was noted you have a configuration for interface bridge vlans that includes vlan1, which you didnt define so it needs to be removed.
(if you need another vlan use 20 or something but you need to define it …
Finally you have disabled ethernet 2,3,4 and spf1 so you should not have any traffic.
Suggest you read this article and try again…
http://forum.mikrotik.com/t/using-routeros-to-vlan-your-network/126489/1