Same here, just says "We're having trouble getting data." This has been happening since yesterdays update.
not me
Same here but it's also happening with fb on explorer as well.
Press and hold the back button, then "kill" the app. Relaunch, all good.
FB official and FB beta seem to act the same. If one is wonky so is the other. I have both installed (at one point the version difference was quite large, now its like 0.0.0.1 difference)