P: Refreshing crop view on secondary display

This is the official bug reporting site.

If you follow the links you've posted, you will find that Lightroom is not in the pulldown fields.

Please see: https://feedback.photoshop.com/conversations/forum-usability-topics/how-to-reporting-bugs-problems/5f5f46234b561a3d42758516 

As Victoria has said:
This thread is marked as Acknowledged at the top. That means a bug has been filed. If additional information is needed to complete a fix this thread will be contacted. If a fix is made and deployed via a software release, this thread will be notified.

Any additional bug reports made will be merged into this thread. 

"Likes" to this thread are counted by our bug database. That is the most effective way to affect this issue. 

ETAs for fixes are not supplied prior to a final fix being released.

Victoria, there has been exactly one (lame) staff interaction on this topic with zero follow up, and no action by Adobe for at least a year. Complaining here has absolutely no effect.  It's a dead end.

The Adobe bug report form is here. The bug tracker is here.  If Adobe sees more bug reports coming in, THEN maybe they'll decide to do something about it.

@joe_bazooka This is the correct place for bug reports, and the acknowledged badge at the top means it's been confirmed by a staff member and added to the internal bugbase.

@TomBlue

Did you actually report the bug? This is just a community forum.

It's annoying. This bug exists for month already and is not resolved. When reading through this thread, I'm wondering what effort people are doing for finding workarounds.
When started using LR, I assume it was around version 7, even a live preview of the crop on the second monitor was possible, not only refresh after releasing the mouse. That's already gone for years.
As the last post from joe_bazooka and also the workarounds for this bug show, that most of such issues come from poor GPU support and already aged 2nd monitor support. 

It's ok to pay a monthly fee if always getting current software where bugs are resolved in a timely manner. Improvement and bugfixing is necessary in multiple areas in LR Classic.
C'mon Adobe, please start listening to your users.

I made a mistake. When I was testing the cropping tool yesterday -- and reported that all was working well -- I hadn't noticed that I had the Navigator panel open. Now, I've tried cropping again, with the Navigator closed and it is still lagging. It works great with the Navigator open, though, so I think I'll just keep that open from now on when I'm cropping.

On Catalina, LRC 10.0 the bug is still present. 

It stops being in sync with the main crop bounds after some number of mouse move events.

When I was experimenting a week or so ago it was definitely stopping after the first pause. Today it goes for several seconds to about 10s of mouse dragging but then pauses and no longer stays in sync.

Release the mouse and start moving the mouse again and it starts syncing the second view again.

I'm using Lightroom Classic CC 10.0 on a brand new Macbook Pro with MacOS 11.0.1 and the problem still exists.  Dell Ultrasharp U2711 external monitor @ native resolution 60Hz,connected via DisplayPort. Dedicated AMD Radeon Pro 5300M GPU.

Update delay only happens with Olympus RAW photos though. JPEGs work fine. Here is a file you can test with:

https://www.sendspace.com/file/94l9it

I am happy to report that with the new update to version 10, this bug has been fixed. Cropping is now shown correctly on my second monitor and it updates almost immediately.

@bruce_houstoun Thank you! I would never have stumbled on this. I'm staying at LR 9.4 for the foreseeable future.