update condition

Author: simonjayhawkins

pandas/core/arrays/datetimelike.py

@@ -1334,7 +1334,7 @@ def _addsub_object_array(self, other: np.ndarray, op):
         result : same class as self
         """
         assert op in [operator.add, operator.sub]
-        if len(other) == 1:
+        if len(other) == 1 and (self.ndim == 1 or other.shape == self.shape == (1, 1)):
             # If both 1D then broadcasting is unambiguous
             # TODO(EA2D): require self.ndim == other.ndim here
             return op(self, other[0])