Hi Nick - the title says it all. It happened on my farm for the first time ever last week and it just happened again. The crates stay green but the flags are gone and visitors cant help (I tested this with one of my baby farms). I have to re-flag them. I would also say that the fact that the crates stay green fooled me twice into thinking all was well. What alerted me was that the crates I flagged are not difficult crates, I advertised high level products in the DD for several cycles, were in the middle of a help event and yet the crates arent being filled.

I dont know if it happens with the tree etc. flags on the farm. It hasnt happened on mine.

Grateful if you would let the devs know. Thanks.