I have noticed the problem on several threads, using different browsers, and operating systems. A Permalink that follows posts displaying lots of images scrolls well short of the link's actual location in the thread. Example:
Big Disappointment at Big Sur, Sam Miller's post, #5
Probably a XenForo bug. Small potatoes but worth reporting.
Big Disappointment at Big Sur, Sam Miller's post, #5
Probably a XenForo bug. Small potatoes but worth reporting.