https://bugs.kde.org/show_bug.cgi?id=522460
Bug ID: 522460
Summary: Windows installer version crashes on startup while
portable package from the same release works
Classification: Applications
Product: kdenlive
Version First 26.04.2
Reported In:
Platform: Microsoft Windows
OS: Microsoft Windows
Status: REPORTED
Severity: normal
Priority: NOR
Component: Setup & Installation
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 193902
--> https://bugs.kde.org/attachment.cgi?id=193902&action=edit
The crash dump is too large, but i have it available and can provide it on
request. I hope the summary help.
Summary
The Windows installer for Kdenlive 26.04.2 crashes immediately after the splash
screen on a clean Windows installation.
The portable package downloaded from the same official release page works
correctly on the same machine.
Replacing the installed bin and lib directories with those from the portable
package completely resolves the issue.
This suggests a problem with the Windows installer package or the runtime it
installs.
________________________________________
Environment
OS: Windows 11 x64
Kdenlive: 26.04.2
Download source: Official Kdenlive release page
Installer and portable ZIP downloaded from the same release page
________________________________________
Steps to reproduce
Install Kdenlive using the official Windows installer.
Launch Kdenlive.
Splash screen appears.
Application crashes before the main window opens.
________________________________________
What I tested
I performed the following before reinstalling:
Completely uninstalled Kdenlive
Deleted C:\Program Files\kdenlive
Deleted all AppData configuration
Deleted Kdenlive registry entries
Installed again from scratch
The crash remained.
________________________________________
Diagnostics
Event Viewer initially reported:
Faulting module: libmlt-6.dll
Exception code: 0xc0000005
A WinDbg analysis showed the crash occurred during MLT repository
initialization.
Using the installed version:
melt -query filters
returned no output and exited with error code 3.
________________________________________
Workaround
I downloaded the portable ZIP from the same official release page.
The portable version started correctly.
I then copied the bin and lib directories from the portable package over the
installed version.
After doing this:
Kdenlive starts normally.
melt -query filters returns the expected list of filters.
The application works normally.
Replacing only:
kdenlive.exe
melt.exe
libmlt-7.dll
libmlt++-7.dll
did NOT solve the problem.
Replacing the complete runtime (bin + lib) solved it.
________________________________________
Additional information
I have available:
Windows crash dump (.dmp)
WinDbg analysis
Process Monitor trace
Event Viewer logs
if they are useful for debugging.
The crash dump (.dmp), if Bugzilla accepts it. If the dump is too large,
mention that you have it available and can provide it on request.
I am willing to perform additional debugging or test development builds if
needed.
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