Assuming this is on your 16.4.2, the GR button shows you the amount of Gain Reduction happening on your inputs. You must have noise gates and/or compressors active on those channels.

Thanks! How do I get rid of it? When I try to turn the knobs right below those channels it goes away for a second then comes right back? Yes my16-4-2

I think, with all due respect, you need to spend some time in the manual.

The meter options (input, output, GR, aux) give you an overview across the channels of what's going on, but in most cases you have to select a channel next to make changes. Same with the noise gate and compressor settings.

When you try to change something directly from the GR meter mode, the FAT channel will temporarily switch to the FAT settings of the input or output that was last selected. In GR meter mode there is no relationship between the flashing LEDs and the knobs right below them!