Why did this issue occur?
A recent upgrade to our infrastructure caused some incorrect permissions to be set which meant that we were unable to download CSS, images and other assets from external sources.
What effect did this issue have on my site?
This will not have affected your site in any way.
What effect did this issue have on my data?
This will not have affected data collection, however, you may need to retake your heatmap screenshots to ensure that the correct page is displayed.
Unfortunately, due to data protection measures we've taken in the past, incoming feedback screenshots cannot be retaken to fix the styling.
What are you doing to stop it happening again?
We'll be holding a post-mortem on this incident next week, but already know that we need better monitoring and oversight on the success of downloading external assets for screenshotting. That will be priority number one.