I went through the trouble of filing a full bug report about this issue and the post just got tossed back here instead of being adressed in any manner. Considering that this started happening only after the latest patch, Squar Enix likely changed something that causes antivirus software to treat it as an undesirable program (and blocks writing to Documents). It’s arguably shared responsibility between antivirus software and whatever the heck Square did to their Exe in the latest patch, but this needs a fix, not everyone goes on the forum to check for answers. My solution in the end was to write to D:\FFXIV SCREENSHOTS\ and call it a day, but this definitely broke for me and others with the last patch when it was working fine prior. neither my Windows installation or antivirus software got an update in the meantime, its 100% the game patch.