Unable to create tailscale interface with tailscale0 device

Hi everyone. I want devices on my lan to have access to my tailscale network. The default tailscale install works fine and my tailscale devices access my lan, but the other way around doesn't work. I read a lot of stuff here and on openwrt wiki and seems like I need a interface with tailscale0 device to make the firewall rules between lan and tailscale work, but always when I try to create the interface it keeps rebooting the interface until it stops. Anyone know why?

I'm on Flint 2 in version 4.7.4

I think this guide shall be helpful to you.
Tailscale - GL.iNet Router Docs 4

Enable the allow remote access LAN option and take another try.

Remote access to LAN was already turned on.

Would it convenient to share this device to us for the further checking?
Technical support via GoodCloud - GL.iNet Router Docs 4

Ok it is shared. Waiting for your support!