I noticed this when trying to decrypt a file on Windows by drag + drop on the Kleopatra icon.
Kleopatra was not running before.
The decrypt/verify window opens for 1-2 seconds and then disappears again. No Kleopatra window shows, no info for the user.
Debugview shows:
574 3653.045555 5372 kleopatra.exe org.kde.pim.kleopatra: Using: "C:/Users/g10code.WIN-TEST3/AppData/Local/Temp/kleopatra-oFJiTO" as temporary directory.
575 3653.045591 5372 kleopatra.exe org.kde.pim.kleopatra: creating a DecryptVerifyTask
576 3653.047614 5372 kleopatra.exe org.kde.pim.kleopatra: dirs ("C:/Users/g10code.WIN-TEST3/Documents/")
577 3653.113734 5372 kleopatra.exe org.kde.pim.kleopatra: Task: "test.txt_conny-ed.gpg wird entschlüsselt …" has no total progress set.
578 3653.115187 5372 kleopatra.exe org.kde.pim.libkleo: gpgconf (QProcess(0x3e1ea80)) exited (exit code: 0)
579 3653.354873 5372 kleopatra.exe org.kde.pim.kleopatra: Collection Progress: 1000 total: 1000
580 3654.622186 5372 kleopatra.exe <process started at 15:24:01.136 has terminated with 0xc0000005 (EXCEPTION_ACCESS_VIOLATION)>The temporary folder given in the output there exists and contains the decrypted file.
This can also be reproduced by calling on the command line with the to-be-decrypted file as argument on Windows and Linux.