It is those 2 same restaurants for me too. I don't think it's a bug. I am annoyed that "soon" notification just popped up and it is midnight and I have work in the morning... *sigh* Goodbye 2 of my wishelin stars until he comes back and I'm awake...
I haven't had a problem. Sometimes I get the message that says I've earned my max in gold after just 1 ad, but I hit the free gold button again and it plays the next ad and allows me to earn up to 5-7 gold/day still.
That's why I don't even bother spending gold to make up all the outfits, because I don't think it's worth the extra you get with the bonus boxes that you receive for each venue. I'd rather prepare recipes and buy ingredients cuz I have more than enough coins to spare.