Only white screen with STM32 Nucleo-64 L467RG + Waveshare 4" ILI9486 + TFT_eSPI <SOLVED>

Here's a demo for a custom ST7789 240x240 LCD driver I wrote for an XMEGA MCU (Arduino's bigger brother running at 32 MHz, 16 MHz SPI)

Photos are loaded from a NOR flash (Winbond W25Q32), not a fan of SD cards...

Youtube demo