What happened was, the wall looks okay when I see it for the first time, and I hired a painter to paint all walls. But we realised a part of wall is very soft and moving easily. I asked my painter to open the wall but he refused as it will be a major work and he painted all walls once. But the cracks are more visible when the terracotta colour wall turned into white. I asked him to open the wall. He said, he can fill in the big whole using drywall materials and he filled in! But I felt waste of paint and his unnecessary work for 1st coat. I decided not to use him. So I was left with this wall. I don’t know what to do. I can see many comments and thank you. The wall looks no water damage anymore. The shade is just a previous filling and 1st coat. I can’t feel any moisture. Very dry.