LAYERP confuses associative hatches
After using BHATCH to create hatches against XREFfed entities, LAYERP may distort the hatch boundary.

Exhibit A – Xref or block has been inserted

Exhibit B – One of the referenced layers is frozen

Exhibit C – Associative bhatch

Exhibit D - LAYERP has been run
Workarounds: Use non-associative hatches under these conditions or thaw your layers using LAYTHW, -LAYER or LAYER
First Appeared: AutoCAD 2002
Status as of 2006 SP1: Still reproducible
Status as of 2007: (unknown – please email with any info)
Status as of 2008: Fixed