ACAD 2013. After many fruitless hours online with ACAD and similar discussion sites, I am still at Square One as follows:
A consultant sent us drawings that got inserted into ours containing over *3500* blocks and *1500* text instances, all invisible. We cannot find where or how this contaminated our drawings, but nothing has worked to even *find* them, much less delete them. They slow our drawings to a crawl, taking 8 to 12 seconds every time we select any object. This has happened to several of our drawings with this consultant's files and we're honestly stuck.
Even deleting every object in the drawing and repeatedly purging is useless — the fonts and blocks still appear in the blank drawing (albeit invisibly). Purchased SuperPurge, more uselessness and it crashes ACAD 3 times out of 4. No XRefs. Tried about 8 of the suggested remedies in other threads to no avail. Can't find them, can't delete them. Don't even show up on our drives, much less in the drawings. Happy to PayPal you some $$ if you can definitely fix this. 18 years in ACAD and never had this issue.
Apparently something nested inside of something and the fonts are attached to that, but no blocks can be found. Thanks to all in advance!
S.-