In my AD environment, there are lot of FSP objects belong to local Internal domain accounts instead of trusted external domain accounts showing under Foreign Security Principals container. I mean SID value of FSP objects (showing under Name column in FSP container) resolves to Internal Domain user accounts rather than trusted external domain user accounts. Moreover, Readable Name of FSP objects is also showing as "Internal Domain\samAccountName" rather than trusted external domain samAccountName.
Kindly let me know root cause and explain how did this happen.
Thanks in advance!