The dnsmasq issues can be mitigated via config. We covered that in this thread:
Please use the search for such issues, it was discussed on the same day the issue was discovered, many weeks ago.
@eric Please update your post, it’s misleading when you didn’t use the forum search.
@Eli @TreeDogNight
All the routers are in the process of being updated to 19.0x, in the 3.201 firmware. You can use the latest snapshots if you are in a rush to upgrade, but notice the UI still has some issues. The base system has been upgraded, which is the first priority at the moment, next will be the UI: