When a button in the top row is active, the button in the second row is not displayed in the OLED.
I looked at the code, and in DisplayOLED.h, line 908 , depending on what is done in the top row, the display stays in black color. It should be put back into WHITE before drawing the bottom row. Adding a simple line
display->setColor(WHITE);
just before starting the "//Bottom line" section will fix the issue.
When a button in the top row is active, the button in the second row is not displayed in the OLED.
I looked at the code, and in DisplayOLED.h, line 908 , depending on what is done in the top row, the display stays in black color. It should be put back into WHITE before drawing the bottom row. Adding a simple line
display->setColor(WHITE);
just before starting the "//Bottom line" section will fix the issue.