My key disappeared... was working for a couple of hours (Flawws mode)

I had a key generated to attempt to fix http errors, could not getinfo, and potentially EUP.

So, I put the key in, restarted server and the key worked but didn’t fix my other issues.
A couple hours later, I go to restart the server, and I get

Authenticating server license key...
GlobalError: Could not authenticate server license key.

This was unusual, so I went to check keymaster and my license key no longer existed.
It was as though someone removed it or something bugged out.

Is someone able to check this out for me?

You can check if your license key is valid by visiting https://keymaster.fivem.net/api/validate/yourlicensekeyhere

If it returns "success":true and other key/values then everything is okay.

What would be a reason for it going false?