I am having this same problem, but I have not found a solution. Since I am moving to a CMS as a front end, I am trying to move my root xenforo installation to /community -- I do that and follow directions in an old XF post I found from
@Brogan that explains this exact process but it is not working. Board URL under options has been set to community and I tried the rewrites....
I get the "site" but images are missing and if I click on navigation I get a 404.
Can someone provide some insight on what I may be doing wrong??
Thank you!