Thx Hanakimo^^ I didn't knew about the french window but I noticed a chance at the fence
IceField, mango seeds can be compounded and the best place for getting them is at chicken farm. If u find a good spot u get Chikens and Eggs too. As for the trees u get just pear and apple seeds (and alota fungus -.-)
And for the black window it's usually bcuz u have over 2 windows of wlo open and yr pc is laggin. Happens to me always :[
And it can "freeze" at any location, not a certain one as most ppl think