[RESOLVED ... I think]
I downloaded the zip file and extracted the files as I normally do without problem, but when I try to run OXC my anti-virus tries to block me saying that the file "might be dangerous" which never happens when I use OXC. I then clicked "I trust this file" to run it anyway, but I get a Windows error message saying "Windows cannot access the specified device, path or file. You may not have the appropriate permissions to access the item"
I tried to run it as administrator, but the same thing happened. I reverted back to the previous version of the Nightlies (3-3) and played no problem as always so it's something different with this version.
Anyone else having this problem or know how I can fix it? Thanks.
UPDATE: Apparently it was my antivirus blocking it. Hours later I got a popup saying that it had checked the application and it was clean. Weird though that this never happened before though, so don't know what changed. I also don't know why I couldn't run it even when I clicked "I trust this file," but anyway I'm all good for now.