Items/weapons disappearing dragon age inquisition

I thought perhaps I had sold Cassandra's shield by accident, but after not being anywhere near a merchant when she suddenly lost her sword, I realised it must be a bug. It had happened in a previous save too to Sera, now that I think about it. It was just after I got her though, so at the time I thought perhaps she hadn't come with any equipment and I'd just imagined her being kitted out.

Kind of a horrifying bug. I hope it gets fixed soon!