In the mod Davinci's Vessels, assembling a ship kicks out nearby online players.

If you use Server.Properties for LAN and set allow-flight to true in the configuration file, this issue will not occur.

However, if you use the LAN Server Properties feature from Universal Tweaks, the issue of players being kicked persists regardless of how you set 'allow flight' in the Open to LAN interface.

Tested using Cleanroom 0.3.2, installed directly via an MMC instance, and launched with the Prism Launcher.