Make sure when you save your load out, you save it with only items in the Arsenal Box. If the saved load out contains any items that are not included, it will break the load out. Also, some items were removed from the Arsenal Boxes, which would cause load outs that included those items to break as well.
No radios, no non-weapon optics (binoculars, vectors etc), no more micro daggers etc can be saved in your load outs.