Looking for some advice here. For the past 3-4 months, I've had structured data appear beside my ranked pages on Google. Google was displaying my review stars and author - obviously this helps greatly with CTR. As far as I know, Google only displays structured data for your domain on a search if they find your domain to be of "quality" and not spammy. This morning, I noticed that for some of my pages, structured data is no longer showing in search. For other pages, structured data is still being shown in search. I find this quite strange since it should be "all or nothing" when it comes to structured data. Has anyone else experienced something similar, and what was your experience? At this moment, I feel that it might simply be a fluke and things might return to normal shortly. GWT is not displaying any penalties, and all my structured data tags are still correct and working.