Preview doesnt display changes between variations
I took over some experiments from someone else and I need to be able to tell what the differences are between the variations but the preview panel is viewing the original and the variations as the same. This is happening across three open experiments.
The guys & girls from Optimizely definitely need to look into this though.
What you could do in the meantime if you're a techie is to check the variation codes and execute the codes in your console to see what the differences are. Then you would be able to see the changes on the site for your variants.