Bug Report: Drop Shadow Shifting Position & Clipping

I'm using the latest release of Photoshop. I have a drop shadow on one layer which the distance changes drastically when enabling/disabling a color overlay of another layer which is completely unrelated, the color overlay is on group containing the social icons at the bottom of the page.

The layer with the drop shadow is outside of the group and above it in the layers panel. Enabling/disabling the entire group has the same effect. Enabling/disabling any or all of the layers inside the group has no effect.

The amount of shift seem to increase exponentially the higher the original drop shadow distance. At 20px the shift was fairly mild, below is set to 40pxonce the shadow jumps a certain amount of distance it starts to clip at the edges.