Failed to Open Filter File

I did actually fix my issue, I wasn't logged into my oneDrive, so my documents folder was inaccessible to POE, that might be something to try.

I moved my User folder from my ssd to my hard drive, thats what caused to bug to happen, just moved it back to his original location and it all worked fine

For me it was the Windows security feature "Controlled folder access" that blocked the game from accessing %userprofile%\Documents.

Not sure why it doesn't directly access it's own directory, which is Documents\My Games\Path of Exile ...

You can download and place the filter file manually in the OnlineFilters folder, or if you trust PoE.exe with your Documents folder, allow the executable in the Ransomware Protection in Windows' Settings.