See Attachment Reproducible: Always Steps to Reproduce: 1. Right Click Desktop Settings 2. Open (For new wallpaper) 3. Randomly Missing Thumbnails Thumbnails are not missing in either Dolphin or Thunar. Only when the folder is viewed through the Desktop Settings app.
Created attachment 98218 [details] Missing Thumbnails
Do you seem thumbnails for that file in dolphin? Does that file open properly in gwenview?
Yes. See Incoming Attachements...
Created attachment 98227 [details] With Dolphin
Created attachment 98228 [details] With Gwenview
Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information as soon as possible and set the bug status as REPORTED. Due to regular bug tracker maintenance, if the bug is still in NEEDSINFO status with no change in 30 days, the bug will be closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging If you have already provided the requested information, please set the bug status as REPORTED so that the KDE team knows that the bug is ready to be confirmed. Thank you for helping us make KDE software even better for everyone!
Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!
Created attachment 118465 [details] screenshot of plasma 5.15.2 on Arch linux The problem persists, thumbnails fail randomly. They appear on mouseover or when F5 is pressed. Operating System: Arch Linux KDE Plasma Version: 5.15.2 KDE Frameworks Version: 5.55.0 Qt Version: 5.12.1
*** This bug has been marked as a duplicate of bug 431696 ***