diff --git a/src/arcadedb/_native/database.py b/src/arcadedb/_native/database.py
index 21b0592e..1bb479bf 100644
--- a/src/arcadedb/_native/database.py
+++ b/src/arcadedb/_native/database.py
@@ -1347,10 +1347,20 @@ def drop_property(self, type_name, property_name):
         ("HASH", False): "NOTUNIQUE_HASH",
     }
 
+    # Index types whose engine factory refuses a unique index (LSMTreeFullTextIndex, LSMSparseVectorIndex,
+    # LSMTreeGeoIndex: "... cannot be unique"). LSM_TREE and HASH take it; LSM_VECTOR does not check it.
+    _NEVER_UNIQUE = frozenset({"FULL_TEXT", "LSM_SPARSE_VECTOR", "GEOSPATIAL"})
+
     def create_index(
         self, type_name, property_names, unique=False, index_type="LSM_TREE"
     ):
         kind = getattr(index_type, "value", index_type)
+        if unique and str(kind).upper() in self._NEVER_UNIQUE:
+            # Refuse before any statement runs, as the engine does, and worded like the JPype path
+            raise ArcadeDBError(
+                f"Failed to create index on '{type_name}[{','.join(property_names)}]': "
+                f"{str(kind).upper()} index cannot be unique"
+            )
         kind = self._INDEX_KIND.get((kind, bool(unique)), kind)
         cols = ", ".join(f"`{p}`" for p in property_names)
         self._run(f"CREATE INDEX ON `{type_name}` ({cols}) {kind}")
@@ -1364,7 +1374,8 @@ def exists_index(self, index_name):
         )
 
     def drop_index(self, index_name, force=False):
-        self._run(f"DROP INDEX `{index_name}`")
+        # force skips the existence check, as on the JVM build (a missing index is then a no-op)
+        self._run(f"DROP INDEX `{index_name}`{' IF EXISTS' if force else ''}")
 
     # -- reads, as small objects with the engine's accessors (schema_objects.py)
 
diff --git a/src/arcadedb/_native/records.py b/src/arcadedb/_native/records.py
index c727ff3c..6d815024 100644
--- a/src/arcadedb/_native/records.py
+++ b/src/arcadedb/_native/records.py
@@ -81,7 +81,9 @@ def get_rid(self) -> str:
         return self._rid or _UNSAVED
 
     def get_identity(self):
-        return RID(self.get_rid())
+        # a row can already carry @rid as an RID (vector-search rows of some engine builds): wrapping it again made str() fail
+        rid = self.get_rid()
+        return rid if isinstance(rid, RID) else RID(rid)
 
     def get_type_name(self) -> str:
         self._check_open()
diff --git a/tests/test_native_point_read.py b/tests/test_native_point_read.py
index c4cd53c3..a86943d9 100644
--- a/tests/test_native_point_read.py
+++ b/tests/test_native_point_read.py
@@ -324,3 +324,14 @@ def test_exec_query_replies_as_call_bin_does(temp_db):
         assert (short[1] is None) == (long[1] is None)
         if flags == 4:
             assert short[1] is not None and np.array_equal(short[1], long[1])
+
+
+def test_identity_of_a_record_whose_rid_came_as_an_rid_object():
+    # the vector-search rows of engine e353330c5c carry @rid as an RID, not text: get_identity() wrapped it twice and
+    # str(record.get_identity()) raised "__str__ returned non-string"
+    from arcadedb._native.records import Document as NativeDocument
+
+    for rid in (codec.RID("#3:7"), "#3:7"):
+        identity = NativeDocument(None, "T", rid, {}).get_identity()
+        assert str(identity) == "#3:7"
+        assert identity == codec.RID("#3:7")
diff --git a/tests/test_schema.py b/tests/test_schema.py
index 37b37504..1826fc1b 100644
--- a/tests/test_schema.py
+++ b/tests/test_schema.py
@@ -341,6 +341,17 @@ def test_create_full_text_index(self, test_db):
         )
         assert idx is not None
 
+    def test_create_unique_full_text_index_is_refused(self, test_db):
+        """The engine refuses a unique full-text index; no index is left behind."""
+        schema = test_db.schema
+        schema.create_document_type("T")
+        schema.create_property("T", "p", PropertyType.STRING)
+
+        with pytest.raises(ArcadeDBError):
+            schema.create_index("T", ["p"], unique=True, index_type=IndexType.FULL_TEXT)
+
+        assert [i for i in schema.get_indexes() if i.getTypeName() == "T"] == []
+
     def test_create_lsm_tree_index(self, test_db):
         """Test creating an LSM tree index explicitly."""
         schema = test_db.schema
@@ -435,6 +446,34 @@ def test_drop_index(self, test_db):
         schema.drop_index(index_name)
         assert schema.exists_index(index_name) is False
 
+    def test_drop_missing_index_force_is_a_no_op(self, test_db):
+        """force=True skips the existence check: a missing index is not an error."""
+        schema = test_db.schema
+        schema.create_vertex_type("User")
+        schema.create_property("User", "temp", PropertyType.STRING)
+        schema.create_index("User", ["temp"])
+        before = sorted(i.getName() for i in schema.get_indexes())
+
+        schema.drop_index("Nope", force=True)
+
+        assert sorted(i.getName() for i in schema.get_indexes()) == before
+        with pytest.raises(ArcadeDBError):
+            schema.drop_index("Nope", force=False)
+
+    def test_drop_existing_index_force(self, test_db):
+        """force=True still drops an index that exists."""
+        schema = test_db.schema
+        schema.create_vertex_type("User")
+        schema.create_property("User", "temp", PropertyType.STRING)
+        schema.create_index("User", ["temp"])
+        name = next(
+            i.getName() for i in schema.get_indexes() if i.getTypeName() == "User"
+        )
+
+        schema.drop_index(name, force=True)
+
+        assert schema.exists_index(name) is False
+
     def test_drop_non_existent_index_fails(self, test_db):
         """Test dropping non-existent index raises error."""
         schema = test_db.schema