Attribute Extract Error BL:Name

[deirdremooresomers]

I have recently added authoring elements to some blocks I use to alter the location of the item with reference to its tag.  Previously I extracted info from these blocks including the names of the block which identifies the item type. Now when I run ATTEXTR I just get *U for the name of my block (BL:NAME C039000). There are several different named blocks in my drawing, they all get labelled *U.

All the other information is extracted as expected.

BL:NAME C039000
BL:LAYER C050000
LOOP_NO C015000
ITEM_NO C015000
ROOM_NO C050000
ROOM_DESC C050000
BL:X N015001
BL:Y N015001
BL:XSCALE N009002
BL:YSCALE N009002
BL:ORIENT N004000

[paullimapa]

If you have dynamic blocks then you'll get *U in the block name.

[cadffm]

additionally for dynBlocks

Blockreference of dynBlock will refer to your original (named) Block,

until you change dynamic parameter values. Acad will create a variant block

with the anonymous name *Unnn

You are posting in AutoCAD forum, in AutoCAD nnnn and AutoCAD LT 2024+

use a better 3rd party Tool. There are a lot of them available.

For AutoCAD (not) LT, command DATAEXTRACTION (EXTRACTDONNEES) works too.

And for AutoCAD LT 2023 or older, create an Attributedefinition with a field(block placeholder) for block name.