After BGP conf with incoming vlan tag cannot forward public

I want to replace an aging Cisco 12000 with a Mikrotik RB450G. The Cisco does the BGP peering with my ISP and forwards a set of public IP addresses I have been assigned. The WAN interfaces from my ISP’s side are tagged with VLAN IDs. After I created the appropriate bgp configurations to advertise my network,according to the ISP’s instructions,I had to set up a vlan interface on the ether1 interface in order to connect to ISP’s WAN. I cannot forward my public addresses even though I seem to do everything correctly. Any thoughts?

good day,have receive any solution to that, i’m having the same issue here as well, please can some one help