falcon engine not caching files

Hi,
I just enabled falcon engine, and it doesn’t seem to be caching files. I set it to put a comment at the end of the html, but it is not appearing. I tried several things, including looking at the wordfence rules to see if anything looked incorrect (I know, unlikely but…), in which I tried removing the /site that was before many of the locations and rewrites, and commenting out the set wordfence_cache_on 0 that was in the if statement that captured the URL components into variables. None of that helped. So now I am trying to figure out what is going on.
Nothing is in my error log, and like I said the comment is not showing up.
My site is michaeltaboada.me if anyone wants to see what they can find.
Thanks,
-Michael.

Edit: I also forgot to mention that for some reason there is a folder called speedofsoundgaming.com_ under the wp-content/wfcache folder, but none called michaeltaboada.me_ or anything like that. This is really odd, as I grepped for speed under the nginx folder to see if there were any misconfigured site names or anything, and nothing came up.