Social Icons in header suddenly not displaying correctly

Hi, I have an element in my header with Social Icons widget to display the social media icons horizontally before-header. This has worked fine for 6 months but suddenly (before latest GeneratePress update) it's started stretching across the full screen.

I've been in to check, have aligned items "none" and also "right" but now they're stacking vertically, and I don't have "allow to wrap to multiple lines" checked.

I've checked everything I can, if I change it from being right aligned it stretches across the entire screen and I've checked everything for being stretched etc. I'm stuck :|

Link added below

Thanks