Describe the bug
On retail the ReadyCheckIndicator element no longer displays icons on unit frames.

I assume this is because the READY_CHECK_ globals now contain atlas keys. e.g. the value of READY_CHECK_READY_TEXTURE is now "UI-LFG-ReadyMark". Locally I have just replaced calls to element:SetTexture with element:SetAtlas as a temporary but not backward compatible workaround.

How to reproduce
Perform a ready check in a party or raid.

What did you expect?
Ready check status icons should appear on party and raid unit frames.

Error report
N/A

Thanks!