When using the built-in preview in the auxiliary (Alt+Down) panel in the "preview" mode (as opposed to "file viewer" mode), .jpg files with size over 5 Mb are not previewed. Same for the previews in the directory listing in the two main panels. Moreover, I can not find a setting for configuring the upper file size limit of the built-in preview mechanism. F3 (krviewer) shows the file just fione, as does the Alt+Down panel in the "file viewer" mode. Reproducible: Always
*** Bug 353312 has been marked as a duplicate of this bug. ***
Maximum file size was removed in KDE Frameworks/KIO, see https://phabricator.kde.org/D4552.
*** Bug 321098 has been marked as a duplicate of this bug. ***