Let's begin here, with why I'm not just accepting this whole problem. I have 57,971kb of Package hairs, from varying sources that I don't feel like tracking down. These were all in one merged .package file, last modified on the 10th of January, with the Dashboard tool run immediately after merging them.
But today, after finishing removing .zip files from my downloads, I ran Dashboard. It had several files that claimed themselves to be broken, meaning Dashboard couldn't open them, but they were all pet markings. But the non-corrupt 'Hairs' file came up saying it was corrupt.
I backed up my files, threw the packages into my Documents, and disabled the files.
But the reason for the Dashboard finding it as a Corrupt file confuses me. Other content said "Bad Ages" and threw it away, but the Hairs just said "Peggy" on it. I lost most of my Package clothes a little over two weeks ago to a similar issue, but it lacked a reason.

Is there something wrong with Peggy hairs, though? Something that only comes into play with a few particular conflicts?

When TS3 first came out, Peggy did some weird shit to her hairs. Like, no-one else could ever figure out how to edit or even read the files weird. She never explained what was going on and eventually started using the same methods everyone else uses, but those first hairs are what Dashboard is referring to.

It disabled the whole Package, though... And it's never picked it up before, either. Is something else going on with it, though? It just doesn't make sense-- I haven't picked up a Peggy file in over two months, more than fifteen runs of Dashboard. Why is it only picking it up now?

Restructuring my CC and having an identical experience.

After merging several packages into one, the dashboard reports corruption on the newly created package with the aforementioned "Peggy" reason. I had never even heard of this creator nor have I ever downloaded from them. Even now, the old packages don't show this corruption label (or any corruption, for that matter), yet merging them always does in the output package. Possibly a false positive?

Regarding those first hairs by that creator--despite their contents being unreadable, are they actually known to cause harm to the game? I've seen one accusation that it impacts performance but multiple people including Delphy found their files were corrupt and didn't match the originals.

Apologies for reviving an old thread. This discussion about the issue seems to have the best SEO, and the program documentation along with other resources like Understanding Mod and CC Conflicts with Delphy's Dashboard make no mention of "Peggy", so I figured there may be other troubleshooters ending up here.