Hi.
Alpha is miscalculated, 0 of the filtered object rounded up a bit probably?
Adding composite:in to the chain with the original shape and composite:over the background could work.
Also the connection order is reversed.
Aaand your input:background image not working as suspected?
Open layer panel (Shift+Ctrl+L),
add a new layer,
change its blending mode to overlay,
delete this new layer;
enjoy the background input working in the filter chain.
(This is more of a questionable feature than a bug; hard-wired not to render those right of performance issues. Background image filter input and using them with custom rendering modes is way more resource heavy than it should be.)
Download the svg, the browser probably won't render it right:
multip.svg
(4.73 kB . 210x297)
(viewed 147 times)
