All content keeps un-distributing itself, so I need to distribrute everything over and over again

Title.

Well, it's been a week and I'm stuck. All of our content in SCCM keeps on no longer being distributed, and so I have to distribute all content over, and over again basically every day,

Something had changed with our permissions so the SCCM service account cannot read files in the SCCM folder where the .wim files are stored. Our TS for imaging is broken because of this. In the DistMgr.log, the only error that comes up is "RDC:Cannot change access right permissions to..." insert site/filepath. DistMgr is able to reach the files fine, UNTIL it tries to change the access right permissions for the .tar signature file for the content.

The drives have plenty of storage, we ensured the SCCM service account has the correct permissions to access the data, and the content is local to the server itself so no need to go through a firewall.

The only error I see is this exactly:

RDC:Failed to set access security on [SITE]\[CONTENT].tar

Now nothing is distributing correctly.

Why is this happening?