So I think I figured it out.

I had leveraged "new viewport freeze" in LM so I could quickly create VP for each individual pipe support for detailing. Current skid has 47 pipe supports not counting main skid frame.

This process would not let me drop a BOM for components within a viewport created this way (even though a layer [or layers] were unfrozen for detailing)

Once I changed LM back to nothing frozen in "new viewport freeze" and made a new viewport, then the BOM started dropping again.

Thanks for the idea of a new layout/VP