Created Unassigned: Tiles list issue [43185]

System.Exception: World file tiles list start is not where it's expected to be. Expected: 2594 Actual: 2584
at System.Runtime.CompilerServices.AsyncServices.<ThrowAsync>b__0(Object state)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

Version: 1.3.12.26342


Does anyone know what this is and how I can fix it?