Really strange issue that seems to have just started on one of our sites. We are running 5.5R2 4237 (hotfix 35).

We created a new page, with a new template. On this page are a few different repeaters showing about 5-10 items each.

The client requested a couple changes so, we made those changes.
Then a few additional changes were made, and a little while later a few more changes were made.

Now, when we load the page we see various "versions" of the page. I say "versions" since we are not using workflow or versioning on this site. With each refresh of the browser we get a slightly different look of the page.

I checked in the database, and the CMS_PageTemplate table has the correct layout, and the correct Webparts. Additionally, the CMS_CssStylesheet table has the correct CSS code. However, when we load the page, we get various incarnations of the page template, and css.

Also, worthy to note is that editing the page layout from Development->Page Templates results in seeing various "versions" of the layout code in the editor. The same has been true of the webpart layout as well.

I know it has something to do with cache, but I am not sure where it is coming from. I did one additional test as well. I cleared the cache from Admin->System, and then I went into the Debug section, and viewed the Cached items. The page does not show up. Repeated reloading of the page, and the page does not show in the cached items. Eventually the item shows up in the cached items, but I am not sure if it is from me loading the page, or someone else loading the page.

I have tried using the Clear Cache, and restart application from the Admin->System. Additionally, I have tried recycling the application pool and restarting the website from within IIS, and nothing seems to affect it.

Does anyone have any ideas on what to check?