Synology NAS Setup breaks local access to docker containers

I followed the instructions to setup ZT on Synology DSM 7.
Everything is workong great on ZT. But, as soon as I created the persisten TUN I lost local access to all my docker containers.

I can only access them now when connected through ZT. Before I make anymore changes I’m trying to figure out exactly what I’ve done with that step (creating the persistent TUN)

I’ve worked in IT a long time, but networking has never been my area of strength.

Small update. Turns out it only blocks local access to the content if the Zerotier Docker container on the Synology NAS (where the other docker containers are running I’m having trouble accessing) is running.