SSD1306 Now with 64x48 for D1 Mini Oled Shield [SOLVED]

changed the line you suggested (which made sense) to 31-94 in hex of course.

Actually I suggested 31,95 (0x1f,0x5f) and now I see you even have 0x20, 0x62 there which is width of 66, not 64. BTW, the original was 127 (not 128). Looks like you simply don't trust odd numbers? ;-)