Please also see this thread: https://care.king.com/en/candy-crush-saga/i-ve-installed-the-app-candy-crush-saga-on-my-lumia-530-phone-twice Seems 'ad id' in the system settings can solve the issue Great! :-)
I mostly play Farm Heroes but I think most games and levels gets changed over time. I've been lucky sometimes to find that a specific level worked differently on Facebook. Might be worth checking out : )
Try these two things that solved the issue for me: 1) make sure the game is connected to Facebook and then play and complete a level in Farm. 2) try disconnecting from FB, reboot, start Farm, then reconnect
You could try a re-install. Just make sure you have backed up your levels and gold. Boosters are gone after re-install - learned that after a couple of re-installs -_-
Skip the FB version and try the version here: https://king.com/play/petrescue - haven't had any issues since changing, except there's no chat room features.
Some of these levels gets changed over time. If you're checking YouTube then remember toi use the time filter - this way you'll see the latest videos ;-)
I could be wrong though. Have a look at this thread: https://care.king.com/en/farm-heroes-saga/how-do-the-magic-beans-help-when-on-a-rancid-racoon-level
Which level are you at in Farm? I remember answering a similar thread for some time ago. I think the the hard, medium and easy settings are an indication of how difficult the level is. I build my theory on that I find it easier to do the combos (more options) when playing the level in easy mode.