I'm sorry, no, the work is for a security company...
The block I want to keep is not a dynamic block, I don't know about the ones I can't purge though...
In fact important to mention, wich I forgot; They appear to be anonymous Blocks but the amount and names (I know names vary) of them changes after each ATTsync and Purge.
For the record, I was able to find and permantly delete nested blocks that had a grip but I can't seem to find the last ones.
I took over an old block/design (poorly) made by someone else (house rules/ design). I had to do that for other stuff as well. I generally know what I'm doing but this one really makes me scratch my head.
Also strange (just found out a couple minutes ago) in Block Editor the amount of objects selected varies (by only one) if I select all (one more) or select what I think are all the objects (the objects I want). Pressing the mouse wheel makes the frame zoom way, way out yet I'm unable to select anything beside the objects I want to keep.
I tried that in both visibility states.
If I don't reply anymore, I'll have gone home, workday is almost over 😉
Thank you for responding.