Can not instanciate model for certain input shapes

[AntoineToubhans]

How to reproduce

• python: 3.6
• tensorflow: 2.2.0
• tf2_yolov4: 0.0.1

from tf2_yolov4.anchors import YOLOV4_ANCHORS
from tf2_yolov4.model import YOLOv4

YOLOv4(
    input_shape=(400, 820, 3),
    anchors=YOLOV4_ANCHORS,
    num_classes=80,
    training=False,
    yolo_max_boxes=100,
    yolo_iou_threshold=0.5,
    yolo_score_threshold=0.25,
)

I got an error :

ValueError: A `Concatenate` layer requires inputs with matching shapes except for the concat axis. Got inputs shapes: [(None, 25, 51, 256), (None, 24, 50, 256)]