Yellow exclamation mark in corner of photos in 2d view

There’s a yellow triangle with an exclamation mark in it in the bottom left hand corner of many of my images. What does it mean?

Hi Aaron Curtis

Take a look on very early answer concerning yellow triangle…
Yellow warning signs next to images

Ah, ok, thanks. In case anyone finds this and wants to know the answer, the yellow triangle means the chip width is not in the database for my Sony a6000, but there is a 35mm equivalent focal length in the EXIF data so it’s not a problem.