Cannot pick up blood shards

blood shards
cannot pick up?

my cap is 500 . thats not the problem. I get chards after defeating a boss
only. during the game fighting regular enemies I pic up shards but my counter
does not increase. And this happens for all my characters.
it has to be a bug because I havent reached my cap. It has only just started in the last week. I dont play that much. thanks for any help the game is not the same without being able to count the shards.