The attached drawing contains a dynamic block called "door-elev". When the block is exploded most of the entities disappear. They are not on a frozen or turned off layer. I assume the problem is somehow related to the multiple visibility states, but I have other similar blocks that work fine. The obvious solution is to not explode the blocks, but in some rare cases we need to. Does anybody know what might be causing the entities to disappear after the block is exploded?