DIR-868L Broken VLAN

I'm using all FreshTomato firmware 2019.1 to 2019.3.118-beta
My ISP require me to use 2 VLANs
1. 500 for internet
2. 600 for IPTV at LAN 4

However as soon I applied VLAN settings, the LAN PORT GUI from overview page become incorrect.
Physical connection ------ GUI
WAN ----------------------> LAN 4
LAN 4 ----------------------> LAN 3
LAN 3 ----------------------> LAN 2
LAN 2 ----------------------> LAN 1
LAN 1 ----------------------> WAN

But the biggest issue is that I can't...

DIR-868L Broken VLAN