The post is quite archaic, but it's just the same bug I have experienced recently with v0.31.14.
I was starting metal industry: ordered burning some charcoal from wood and it got piled into a bin at respective pile (together with two bauxite blocks).
Despite there were three blocks in bin, smelter continued showing "Check access...". Only after disabling the pile and burning one more piece charcoal, that stayed at wood burner, smelter menu unblocked and I could continue.
This is a bug.
I would be glad to get any response!