jmri-sml-nx

Explains and fixes JMRI Signal Mast Logic, automatic discovery, and Entry/Exit (NX), including how facing and protected blocks are resolved from mast slots at block boundaries and end bumpers. Use when placing masts or NX sensors on a Layout Editor panel, by GUI or by script, when choosing east or west bound slots, when discovery misses a mast or pair, when errors such as "No facing block found for destination mast" or "routing not stabilised" appear, when a mast at a buffer stop will not work, when editing signalmastlogics or entryexitpairs XML, or when choosing an NX type. For general XML edit safety and Store behaviour, use jmri-panel-xml.