Undo doesn't affect preview

I was able to revert back to 13.5, but now dynamic link isn't working in a project I started with Premiere 2015.1 (9.1.0). Perfect!

I just re-downloaded CC2014, at least that version is stable where I can get some work done.

If I try to run After Effects as Administrator, none of my network drives show up in AE's file browser.

Same issue,

runing AE as administrator is a "working" workaround for me too.

We got a solution for this which works for us at the moment.

We had the same problems on various windows 10 stations.

Try to open after effects with the option "run/open as Administrator". This option appears when making a right click on the program icon.

Same problem here!
The "end of the month"...really?

A bad installation, hardware, local machine configuration details are very unlikely to be the cause of a problem like this - so don't psych yourselves out too much on that front. The bug in question is most likely related to some particular kind of change, or combination of changes, to the project - and may be happening intermittently. The most useful details would be -- how were you modifying the project just before the problem appeared (for example - I was using the clone brush, I pasted a layer and then undo'd, etc).

Okay, so I totally uninstalled After Effects and reinstalled from scratch from the desktop Creative Cloud app (back to the latest update), and now undo is working correctly. Maybe the update process is borking something, and reinstalling fresh fixes it? I'd suggest to give it a try, as it worked for me.

Submitted a bug report as well, but am having the same issue that only purging the memory/cache refreshes the preview with any updates tot the timeline.  I'm trying to get work done, so I can't restart my project, but I am working with 4k (screen capture) footage in a 1080p timeline to show a web interface, but things like deleting all layers from the timeline doesn't update the preview window without the purge, so it's frustrating.

If you're seeing this in 13.5, please try upgrading to 13.6.

For those experiencing this in 13.6, please try:

1. Turn on logging (Help -> Enable Logging) (requires an app restart)

2. Using the simplest set of steps you can, get into the preview-not-updating-after-undo state.

3. Once you're in the state, make a copy of the log file (Help -> Reveal Logging File). This should ensure the last things in the log are hopefully the things you did just before the problem occurred....

4. Either post the saved log here (via Pastebin.com ‌‌/ Dropbox), or send via a bug report Feature Request/Bug Report Form‌ with a DETAILED report of the steps you took to get there (this is critical, as we'll have to narrow exactly which project change is causing things to get out of sync!)

Also, in cases where you are no longer seeing updates, please check the CPU usage of AE in your Activity|Resource Monitor - it's possible that what looks like preview not updating may in fact be AE cranking on a slow frame in the background.

And finally - in 13.6 (though not in 13.5), purge should potentially fix bugs in this family. If you're seeing this in 13.6 and purging memory + cache does NOT fix the preview, please call that out explicitly, as it might be a slightly different problem.