I have my spectacle configured to open "save a rectangle" or whatever it's called. It lets me select the part of the screen that I want, then I double click in the area and I have it copied to my clipboard, and from memory there is a setting somewhere that automatically saves it to ~/Pictures/Screenshots
I now use flameshot, which has a similar auto save when copying feature
Are you closing the spectacle window after taking a screenshot? I found that you need to keep it open for the image to stay in the clipboard. When I have the time I can check how I've set it up if that doesn't work for you. Although I only copy to clipboard, not save as well.
KDE is an international technology team creating user-friendly free and open source software for desktop and portable computing. KDE’s software runs on GNU/Linux, BSD and other operating systems, including Windows.
If you encounter a bug, proceed to https://bugs.kde.org/, check whether it has been reported.
If it hasn't, report it yourself.
PLEASE THINK CAREFULLY BEFORE POSTING HERE.
Developers do not look for reports on social media, so they will not see it and all it does is clutter up the feed.