Submitting Lessons won't work

i was chugging along in the lessons and the following 2 won’t let me submit my results:

Learn How the CSS @keyframes and animation Properties Work
Use CSS Animation to Change the Hover State of a Button

I suspect there are more but it seems to have to do with the new design etc.

Is anyone else having problems too?

hmmm weird, it seems to be working now ¯_(ツ)_/¯ not sure what happened