Your old version worked on our server, just so you know.
I am not sure what to send you, that will help you figure out what might cause the plugin to not work.
I did notice that in carbon cpanel the plugin cant be edited when you try config via its UI not sure if that helps but other plugins let you do this.
I also changed the upgrade chance to 100%
here is the config file:
{
"Version Number": {
"Major": 1,
"Minor": 3,
"Patch": 7
},
"Upgrade Chance (0-100 = %0-100 chance)": 100.0,
"Building Grade to spawn as": 3,
"Train Wagon Start Health": 5000.0,
"Train Engine Force": 250000.0,
"Blacklisted Entities (shortnames)": [
"example1",
"example2",
"For ShortNames Go to:",
"https://docs.carbonmod.gg/references/items/",
"https://www.corrosionhour.com/rust-item-list/"
],
"Sync Train Throttles": true,
"Max Train Pop": 50.0,
"Max coupled trains": 24,
"Max Train Couple Speed": 9.0,
"Message Prefix": "<size=18px><color=#51a3f5>[</color><color=#FFFFFF>T</color><color=#FF0000>B</color><color=#51a3f5>]</color></size>"
}
When near a train it does state exiting train build mode, after moving away from the flat train where twigs used to show for building.
Another issue i think might be relevant is permissions for plugins in carbon cant be granted to default group for players, this sometimes has to be done for plugins to work, but when i try find your plugin it doesnt show up in carbons cpanel.
hope that helps let me know what else you need