I'm trying to display a bitmap on Grove - OLED Display 1.12'' V2. When uploading the example sketch for drawing bitmap the image slowly draws from top to bottom and stops at the last few rows of pixels. Then the entire image(without the missing bottom rows that haven't been drawn yet) flips and clears slowly from left to right. I've tried disabling scroll mode but that doesn't seem to do anything. The hello world sketch works perfectly and shows text without slowly drawing, clearing or flipping. The "display test" sketch also works almost perfectly except for when it tries to show the bitmap example SEEED logo; the same behavior occurs. What's going on here?