GestureDetector tab does not work after rotation in Flutter

There is an icon under the image widget and I can rotate the image using GestureDetector and Transform.rotate.

At first, it works well to rotate the image by dragging the icon. However, tapping the icon again after rotating does not work.

Can you tell me the cause and solution of this?

  Transform.rotate(
    angle: imageModel.radians,
    child: Stack(
      // image widget 

        // TODO image rotate icon
        // left bottom
        Positioned(
          left: -5,
          bottom: -5,
            child: GestureDetector(
              onPanStart: (details) {
                logger.d("rotate click");
                _imageStartPoint = details.globalPosition;
              },
              onPanUpdate: (details) {
                double initX = _imageStartPoint.dx;
                double initY = _imageStartPoint.dy;

                // moving distance?
                var dragX = details.globalPosition.dx - initX;
                var dragY = details.globalPosition.dy - initY;

                // The direction of the drag and the direction of rotation are opposite
                double degrees = -dragX; 
                double radiams = 0; 

                // rignt drag
                if (dragX < 0) {
                  radiams = degrees * math.pi / 180;
                } else {
                  radiams = degrees * math.pi / 180;
                }

                imageModel.radians = radiams;
                _imageStreamController.add(imageModel);
              },

              child: const Icon(
                Icons.rotate_right,
                size: 30,
                color: Colors.red,
              ),
            ),
        ),
    )