Ever since I started working with MEP I have 10 blocks that appear in the block list for every drawing. The names of all the blocks start with "Aecb_default_" with several different endings.
None of these blocks actually appear anywhere in the drawing but they are not purgeable, and if I WBLOCK all the linework to a new drawing they still appear.
I have tried just blocking bits and pieces to see where they come from and they seem to be something to do with dimensions. However, they appear on drawings sent to me from other companies as well as drawings that I have created.
Also, apparently linked to this, I get a cycle of "bad layer" and "bad block" creation when I try to purge and audit the drawing. I have seen this mentioned before. The audit command comes up with a bunch of "eWasErased" errors and creates error blocks and error layers. The purge command removes those layers. Then the Audit command puts them back again etc. The advice I have seen recommends closing and reopening the drawings but this doesn't get rid of any of these problems.
Any sugestions? Or are these "Aecb_default...whatever" blocks just an integral part of MEP that I have to live with?