No keys.......... only chest... did key drops decrease? Or is this a bug now?

Why am I only getting chest.... I haven't received a key in so long.... I have 15 chest and only key fragments that I got from completing winter events. Is this normal or did the drop rate decrease? I also have all champs so champion shards are completely useless to me and is discouraging. Is anyone else having this issue?
Report as:
Offensive Spam Harassment Incorrect Board