The short staggered joints were fixed but he left the hearth frame like this. https://ibb.co/58dCNf8
Plus now I might have a new problem:
https://ibb.co/3RGpwNc
https://ibb.co/ZWCTr6H. Is that acceptable? I can feel it when walking on top of it . There's also a small ding on that plank, maybe...