It started a few days ago. When I visit my neighbour on my wall or news tab, it will have one of the following scenarios:
1. My restaurant will appear at my neighbour's place, RS freeze. - unable to tip, able to exit to home.
2. My neighbour's place appear, RS freeze, - unable to tip, able to exit to home.
I have to repeat the above countless times before I can finally do my chores of tipping.
I guess this fits the bill of a bug?