Tmux doesn't parse the configuration for ~/.tmux.conf

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https://bbs.archlinux.org – Similar to the issue found here, although since a solution wasn't posted, I have nothing to go off of.  I did a trace on tmux, and it's reading the configuration file (also, even a removed ~/.tmux.conf doesn't have it read /etc/tmux.conf), but it isn't actually executing the commands I put in there.  I can source configuration manually inside tmux, so it's a minor annoyance at best.  Permissions are 644, it's in where it's supposed to read, but for some reason it just isn't parsing.  My tmux configuration right now:set-option prefix C (HowTos)