SSD1963 - wrong colors if using sprites

[elral]

I am using a display with SSD1963 driver in 8 bit parallel mode connected to a Pico.

If I write directly to the display via tft->setTextColor(TFT_YELLOW); and e.g. tft->drawString("Test", 100, 100, 1); I am getting correct colors using the define TFT_RGB_ORDER=TFT_RGB. But if I am using sprites, e.g. spr[sel].fillRect(10, 10,100, 100, TFT_RED); and tft->pushImageDMA(100 * sel, 100, sprPtrAttInd[sel]); wrong colors are shown. E.g. red is displayed in green.

On a Pimoroni Tufty2040 with ST7789 display also in 8 bit parallel mode the exact same code is running fine where TFT_RGB_ORDER is not set.

The defines for the display in my platformIo.ini are:

-DSSD1963_800_DRIVER=1
-DTFT_PARALLEL_8_BIT
-DTFT_RGB_ORDER=TFT_RGB  	; required to get correct colors for tft.xyz()
;-DTFT_RGB_ORDER=TFT_BGR
-DTFT_CS=8
-DTFT_DC=9
-DTFT_RST=10	
-DTFT_WR=11
-DTFT_RD=12
-DTFT_D0=0
-DTFT_D1=1
-DTFT_D2=2
-DTFT_D3=3
-DTFT_D4=4
-DTFT_D5=5
-DTFT_D6=6
-DTFT_D7=7
-DLOAD_GLCD=1
-DLOAD_FONT2=1
-DLOAD_FONT4=1
-DLOAD_FONT6=1
-DLOAD_FONT7=1
-DLOAD_FONT8=1
-DLOAD_GFXFF=1
-DSMOOTH_FONT=1

I am wondering if the define TFT_RGB_ORDER is not considered for sprites?

/edit: setting spr[sel].setSwapBytes(true/false) does not help
One Exemplare is the bouncy circles I am using in my code