Xcode Problem with new MBP

I really cannot wait until my Xcode cloud Beta comes in so I can stop this mess of dumb issues.

So I think I figured out my issue with the MBP, and it seems stupid, but I don't know how to fix it.

Ever since I installed Xcode on my new MBP it has not worked with Preview.

I get a bunch of errors that files do not exist, even though they do.

So... I think i know what the problem is finally.

When I first set up the laptop the computer set me up as brandon with a lower case b. And I reset up the user with an upper case B.

This was one of the first things i did on the computer. But from the looks of it, capitalization is crucial.

Is there a way I can either reset this to have my capital letter recognized or do I need to reset it back to lower case?

I feel there has to be some terminal command for this.

So answering my own question.

yes, renaming my home directory back to lower case solved this problem.