So, long story short, I started a semi complicated scene of a camera moving backwards through a room. I had a few successful batch renders of all 630 frames of my scene and have had to make changes after that. Every render was taking between 3-4 days to complete with GI turned on. This last go around has been another story though. All of a sudden, I start the render and it can't render one frame over a weekend (67+ hours). I have cleaned up the scene, checked settings countless times, and tweaked lights with absolutely no luck. I'm hoping to get someone to check out my file and offer any feedback. It's been about a month since this started happening and I am absolutely stumped since I've never run into this issue before.
Thanks in advance!