https://bugs.kde.org/show_bug.cgi?id=518198

            Bug ID: 518198
           Summary: Kdenlive crashes when importing multiple videos with
                    wrong project settings
    Classification: Applications
           Product: kdenlive
      Version First 25.12.3
       Reported In:
          Platform: Arch Linux
                OS: Linux
            Status: REPORTED
          Severity: minor
          Priority: NOR
         Component: Project Bin & Import
          Assignee: [email protected]
          Reporter: [email protected]
  Target Milestone: ---

SUMMARY
Kdenlive crashes when importing multiple videos with wrong project settings,
correct format is automatically detected but crashes after pressing "switch".
With the correct settings, import is still slow but doesn't crash.

In the video example, 4k footages were used in the 1080p timeline.
https://youtu.be/9TSLv5l9LWs

kdenlive 25.12.13 installed through Pacman.

STEPS TO REPRODUCE
1. open kdenlive with a 1080p 25fps project timeline.
2. drag and drop around 10 4k footage into the project. 

OBSERVED RESULT
it becomes unresponsive and crashes, or crashes after clicking on the switch
button.

EXPECTED RESULT
imports without issues

ADDITIONAL INFORMATION
Unsure if 4k footage plays a role. Davinci is able to import all the footage
fine.

Desktop with 32gb RAM

nvidia-smi:
+-----------------------------------------------------------------------------------------+
| NVIDIA-SMI 595.58.03              Driver Version: 595.58.03      CUDA
Version: 13.2     |
+-----------------------------------------+------------------------+----------------------+
| GPU  Name                 Persistence-M | Bus-Id          Disp.A | Volatile
Uncorr. ECC |
| Fan  Temp   Perf          Pwr:Usage/Cap |           Memory-Usage | GPU-Util 
Compute M. |
|                                         |                        |           
   MIG M. |
|=========================================+========================+======================|
|   0  NVIDIA GeForce RTX 3070        Off |   00000000:08:00.0  On |           
      N/A |
|  0%   50C    P0             45W /  220W |     498MiB /   8192MiB |      0%   
  Default |
|                                         |                        |           
      N/A |
+-----------------------------------------+------------------------+----------------------+

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