Hi,
Why do I like the older 2.8.20 version :confused:

Hi Jamie did you download the script fu or python layer styles plugin ?
I believe the script fu is the more stable one,
Layer Effects | GIMP Plugin Registry

Yep gimp is good,
This new update not so much,...14 still to green in the gills ;)
Stick with your present version for now or the prior I believe ...10 = Stable version ;)
Cheers.