diff --git a/src/test/kotlin/ru/dbotthepony/mc/otm/tests/FieldSynchronizerTests.kt b/src/test/kotlin/ru/dbotthepony/mc/otm/tests/FieldSynchronizerTests.kt
index 0ed4494ab..d36e2d9a4 100644
--- a/src/test/kotlin/ru/dbotthepony/mc/otm/tests/FieldSynchronizerTests.kt
+++ b/src/test/kotlin/ru/dbotthepony/mc/otm/tests/FieldSynchronizerTests.kt
@@ -4,6 +4,7 @@ import org.junit.jupiter.api.Assertions.assertEquals
 import org.junit.jupiter.api.DisplayName
 import org.junit.jupiter.api.Test
 import ru.dbotthepony.mc.otm.network.FieldSynchronizer
+import ru.dbotthepony.mc.otm.network.IMutableField
 import java.io.ByteArrayInputStream
 
 object FieldSynchronizerTests {
@@ -105,4 +106,29 @@ object FieldSynchronizerTests {
 			assertEquals(aFields[i].value, field.value)
 		}
 	}
+
+	@Test
+	@DisplayName("Field Synchronizer Lotta fields")
+	fun lottaFields() {
+		val a = FieldSynchronizer()
+		val b = FieldSynchronizer()
+
+		val fieldsa = ArrayList<IMutableField<Int>>()
+		val fieldsb = ArrayList<IMutableField<Int>>()
+
+		for (i in 0 .. 900) {
+			fieldsa.add(a.int())
+			fieldsb.add(b.int())
+		}
+
+		for (i in 0 .. 900) {
+			fieldsa[i].value = i
+		}
+
+		b.applyNetworkPayload(a.collectNetworkPayload()!!.let { ByteArrayInputStream(it.array, 0, it.length) })
+
+		for (i in 0 .. 900) {
+			assertEquals(fieldsa[i].value, fieldsb[i].value)
+		}
+	}
 }