It's been several months I've been mining using Claymore (with only 1 GPU) and currently my shares are getting lower and lower due to the difficulties increase. But for the last week, my shares on dwarfpool are waaaay much lower than what Claymore shows me. As you can see on this picture attached, I should have to got apprx. 280 shares on my last 7 hours mining progress but what my pool shows is only 124 shares submited. I tried to move to another pool and it keep happens to me. I actually have 3 GPU (RX470 & RX570) and I tried each card and result are still the same. What should I do? Is it stale shares? Anyone can help me?