Hi All

I just went through this with the one client who has had this issue so far and I don't think it's the AV. MS updated their Security/Defender programs and this is where the issue is likely coming from.

The solution seems to be re-installing an Adagio application (likely the most recent release date) or restoring the DLL from a backup.

So far is hasn't been deleted again. Hopefully it will stay that way.