Knocking out Puck

Hey guys. Coffee lover here and am enjoying my purchase of the Breville barista express.

Recently I’ve started having trouble knocking my used puck out of the filter. I’ve had this issue with both the single wall and dual wall filters. I used to be able to leave the puck to dry out between coffees but last couple weeks I literally have to slam the filter multiple times to get it to come out, and often the filter falls out of the handle. Also getting lots of splatter of coffee spraying all over the place while i attempt to do this. What is going on?

Are you having some good quality Knock box? May be that can help a little.