If the annotation option is enabled in the block editor the block would behave as annotative.
How is that your saying the block is not annotative when you pull the file into new drawing? is it that its not showing up annotation symbol next to the cursor when you hover over the block or with the change in the annotation scale the block is not annotating. Have you tried checking if the ANNOAUTOSCALE is to 4? and also please attach the drawing so that we can help you out further.
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ವಿನೋದ್ ಕೆ ಎಲ್( System Design Engineer)
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