Many thanks @S. S - I've had this issue for many years and researched it ongoing - you're the first to mention the page cache setting. I've turned it off on both my macs. While I can't verify 100% that it worked (yet) because it is a ramdom occurance - I'm pretty confident this was the problem. Thanks and I'll continue to monitor it. ... View more

Still happening in September 2023! Has anyone submitted a bug report we can vote on? ... View more

This is still happening, I'm not sure why this is marked "Assumed Answered." This is unacceptable behavior. The workarounds do help, but what happens when we DON'T recognize that this random glitch has occurred? Our clients tell us we are idiots for not making their changes. This did not happen with Acrobat XI using earlier Mac operating systems. I recently upgraded EVERYTHING (new Mac, High Sierra, new Adobe Suite) and this is the reward. Anyone here know how we take this to the next level? Submit a bug report I suppose? ... View more