Inside ArcJet Systems building, there's a terminal called "Project Manager's Terminal" that requires expert level Hacker perk.

Whenever I try to click on it to begin hacking, it tells me that I need a higher level Hacker perk but the problem is that I already have a expert Hacker perk? And it is basically telling me to get master Hacker perk even though the terminal is expert difficulty?

Was just there and I missed that terminal.

There is a Master level of locks and terminals that is more difficult than Expert, and which requires an additional perk level to even try to crack.

Yes, but the terminal in question says it's an Expert terminal, not a Master Terminal. I actually ran into it myself. I checked, and I do have the Expert Hacker perk, but that terminal won't allow me to hack it.

I found the password, thanks.

Maybe it was wrongly labelled as expert rather than master.