Same here, this is the error I'm getting:

FATAL ERROR: Mod failed to detour some of the game methods. The game code is now in invalid state. Restart the game and if the problem persists, disable this mod, as it is probably in conflicit with some of your other mods.
at HarmonyLib.PatchTools.GetOriginalMethod (HarmonyLib.HarmonyMethod attr) [0x00000] in <filename unknown>:0
at HarmonyLib.PatchClassProcessor.PatchWithAttributes (System.Reflection.MethodBase

Mine was fixed by unsubscribing from 81 tiles. Little sad but gotta do what you gotta do.

I'm having an issue with not being able to place new buildings along roads, also the electric roads mod stopped working.

Ambiguous match for HarmonyMethod[(class=NetManager, methodname=CreateSegment, type=Normal, args=undefined)] [HarmonyLib.HarmonyException]

Details:
System.Reflection.AmbiguousMatchException: Ambiguous matching in method resolution
at System.Reflection.Binder.FindMostDerivedMatch (System.Reflection.MethodBase[] match) [0x00000] in <filename unknown>:0
at System.MonoType.GetMethodImpl (System.String name, BindingFlags bindingAttr, System.Reflection.Binder binder, CallingConventions callConvention, System.Type[] types, System.Reflection.ParameterModifier[] modifiers) [0x00000] in <filename unknown>:0
at System.Type.GetMethod (System.String name, BindingFlags bindingAttr) [0x00000] in <filename unknown>:0
at HarmonyLib.AccessTools.DeclaredMethod (System.Type type, System.String name, System.Type[] parameters, System.Type[] generics) [0x00000] in <filename unknown>:0
at HarmonyLib.PatchTools.GetOriginalMethod (HarmonyLib.HarmonyMethod attr) [0x00000] in <filename unknown>:0

@Shadow Bonnie That's not useful without the rest of the output log.