Same issue for me. Submitted a bug report #12852.
For me, resizing the page didn’t fix it, but refreshing would fix it sometimes.
I also noticed that the elements in the RG would not visible but were still ‘there’ in that they were clickable, and would trigger the associated workflow from clicking them.
I also seem to be having issues with non RG failing to show up due to a conditional statement - anyone else have this? I have a regular group that is not visible, and is visible if a user condition is true; I’ve confirmed the user condition is true but the group is no longer showing up. 90% sure this is related to this recent update but not positive.