img_group shape=`(4, 3, 10, 224, 224)` # NCTHW After operator: [img_group.reshape((-1,) + img_group.shape[2:])](https://github.com/decisionforce/TPN/blob/117a4d187517f51ea914b17be8ac59ef1a36b594/mmaction/models/recognizers/TSN3D.py#L94), the shape of x is: `(12, 10, 224, 224)`, and leads to the error above in [here](https://github.com/decisionforce/TPN/blob/117a4d187517f51ea914b17be8ac59ef1a36b594/mmaction/models/tenons/backbones/resnet_slow.py#L397). Is this a code bug?