★Why are blocks inside a nested block exploded in ZWCAD

Issue:

After using the BLOCK command to combine multiple blocks into a single block, why are the inner blocks found to be in an exploded state when entering the nested block?

Causes:

The Annotative option was selected when creating the block.
When a block is defined as annotative, the nested elements are treated as basic graphic objects rather than preserved block references.

Solution:

If you need to maintain the nested block structure, ensure that the Annotative option is unchecked when creating the block.