I've replicated this bug multiple times, and it's rather frustrating.
I always generate charts with no photos selected in the advanced options. The first chart is created properly (with no photos), but then subsequent charts include the photos despite the 'no photos' selection. This persisted for me in all generated charts thereafter until I cleared out my session, created a different chart type (in an effort to clear everything), and reset the advanced options to 'default'. Doing any of these fixes separately did not seem to resolve the issue, but doing all of them finally got me back to 'no photo' mode... for one chart. I'll also note that going into the settings and changing it to show photos, and then switching it back to 'no photos' does not resolve the issue either.
This led me to discover another issue: clicking the 'reset to default settings' button does not reset to default settings - my only guess is that it is reverting to settings for an old default that the website has since changed. The frames, font, and background were all different than the actual default chart I had generated the first multiple times, before resetting (to remove the photo bug).
I hope there is a resolution for the photo bug issue. I am constantly generating and deleting charts as it is, which takes a lot of extra time and processing power.