@splashingpixels.com <- this is true.. i forgot about this effect.
@phildom - it would be a caching problem, there is obviously something somewhere making your pages cache.
something possibly on the top level? https://www.creightonscakes.co.uk/
i see on this page W3 total cache is enabled still ^ and also it is using disk storage which is why it would leave files which are possibly the culprit still.