[BUG][ED] Error: Starting NeoLemmix.exe failed or was aborted

[Guigui]

Hello,

A friend of mine installed NeoLemmix 12.14 and NLEditor 2.0 in the same folder. When he creates a level and tries to playtest it via the "Play Level" in the editor, he gets the following error :

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Error: Starting NeoLemmix.exe failed or was aborted
Also in his main directory with NL and NLEditor, he has a file named ErrorLog with the following content :

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20260422155035
System.ComponentModel.Win32Exception (0x80004005): L'opération a été annulée par l'utilisateur
à System.Diagnostics.Process.StartWithShellExecuteEx(ProcessStartInfo startInfo)
à System.Diagnostics.Process.Start()
à System.Diagnostics.Process.Start(ProcessStartInfo startInfo)
à NLEditor.NLEditForm.PlaytestLevel()
Any idea what the problem might be ?

For now he launches the created level manually with NL 12.14 to playtest, but it is quite annoying.