Layers Panel

WILD IDEA #THX1138:

Search your entire computer and delete all copies of "DS_Store".   In the past, with other programs, it may interfer with the display of thumbnails in some programs.  It's a mac file, and not used, or needed by windows.

While your'e at it:  DELETE ALL COPIES OF "THUMBS.DB" from your computer.  It's used to help display thumbnail images in programs and your file explorer.  Sometimes they become corrupted and start messing with things. 

Windows automatically recreates them as needed, no there is nothing to worry about by deleting them.

 

I'm just curious whether toggling Ctrl+Z and Ctrl+Y after the thumbnail disappears fixes the issue.  Or what else you do to fix it e.g. close and reopen the file.  And did the problem only start after your computer guy updated everything?  😉

OK.  I see what you are saying.  But you haven't answered my questions or told me whether you have tried my suggestions.  Since you say this has only just begun, I strongly recommend that you reset the preferences file.  In theory, that takes the program back to its out-of-the-box condition.

In your screenshot, you show that you have several open files and at least 3 being edited.  I'm wondering whether there is a memory leak.  How much physical RAM do you have?  And do you have your scratch disk on your system drive?

And I have removed your email address from your post. We don't like personal information to be displayed on the forum.  It's for your protection.  Any change you have made on the Adobe.com site should carry over to the Community Forum.

If resetting your preferences file doesn't work, you may want to contact Adobe Support.  You can start a chat session by clicking on the blue Contact Us button under the Support menu at Adobe.com. Or you can contact Support by telephone using the numbers listed here: https://helpx.adobe.com/contact/phone.html.

What do you do when it happens?  Are you able to get the thumbnails back?  Do all of the thumbnails show as a transparent checkerboard? If you undo your last action (Ctrl+Z) does the thumbnail come back?  If so, does restoring the last action (Ctrl+Y) change the thumbnails again?  If so, does it make any difference what the last action was?

I've never seen this issue reported before so I'm not sure what else I can tell you.  My only suggestion would be to try resetting the preferences file. Go to Edit>Preferences>General tab and click the Reset Preferences on next launch button.  And if it happens again, come back with a screenshot of the layers panel in this condition.  And also give us a screenshot of the History panel when it happens.

Can you post a screenshot of your layers panel both before and after this happens.  What are the specs of your computer? Have you tried updating your graphics driver?  How often does this happen.  How many layers do you normally use?