Unusual dash warning light

[Scoob]

how’de. I’ve just been on an enthusiastic drive through the Adelaide hills in my mk5 golf gti dsg. I was using manual mode, and the section of the centre dash that tells you what gear you are in started to flash red. Can’t find what it means in the manual and I thought this would be the perfect place to find out. I have a feeling it could be telling me the gearbox is hot but not sure. Thanks in advance for any info.