Title setting in the first file of the batch is not respected

[H34dl3ss]

I want to have the title-tag empty in all of my files.
The program is not removing the title-tag in the first file of the batch although all

2025-10-22 14:30:10,429 DEBUG    vsutillib.pyside6.classes.QOutputTextWidget OTW0003: [mainApp.main] Shell:  /usr/bin/mkvmerge --ui-language de_DE --priority lower --output '/mnt/path/to/files/S01/int/my-show-title-files.mkv' --language 0:en --track-name 0: --display-dimensions 0:960x720 --language 1:de --track-name 1:AC3 --language 2:en --track-name 2:AC3 '(' '/mnt/path/to/files/S01/int/my-show-s01e01-720p-int.mkv' ')' --language 0:de --track-name 0:VobSub '(' '/mnt/path/to/files/S01/int/my-show-s01e01-720p-int-subs.idx' ')' --title "" --track-order 0:0,0:1,0:2,1:0 
2025-10-22 14:30:10,435 DEBUG    vsutillib.pyside6.classes.QOutputTextWidget OTW0003: [mainApp.main] Command Template:  /usr/bin/mkvmerge --ui-language de_DE --priority lower --output <OUTPUTFILE> --language 0:en --track-name 0: --display-dimensions 0:960x720 --language 1:de --track-name 1:AC3 --language 2:en --track-name 2:AC3 <SOURCE0> --language 0:de --track-name 0:VobSub <SOURCE1> --title <TITLE> --track-order <ORDER>  Commands: 
2025-10-22 14:30:10,440 DEBUG    vsutillib.pyside6.classes.QOutputTextWidget OTW0003: [mainApp.main] Command 1. ['/usr/bin/mkvmerge', '--ui-language', 'de_DE', '--priority', 'lower', '--output', '/mnt/path/to/files/S01/int/new-my-show-s01e01-720p-int.mkv', '--language', '0:en', '--track-name', '0:', '--display-dimensions', '0:960x720', '--language', '1:de', '--track-name', '1:AC3', '--language', '2:en', '--track-name', '2:AC3', '/mnt/path/to/files/S01/int/my-show-s01e01-720p-int.mkv', '--language', '0:de', '--track-name', '0:VobSub', '/mnt/path/to/files/S01/int/my-show-s01e01-720p-int-subs.idx', '--title', 'my-show-title-which-sould-be-empty', '--track-order', '0:0,0:1,0:2,1:0'] 
2025-10-22 14:30:10,446 DEBUG    vsutillib.pyside6.classes.QOutputTextWidget OTW0003: [mainApp.main] Command 2. ['/usr/bin/mkvmerge', '--ui-language', 'de_DE', '--priority', 'lower', '--output', '/mnt/path/to/files/S01/int/new-my-show-s01e02-br-720p-int.mkv', '--language', '0:en', '--track-name', '0:', '--display-dimensions', '0:960x720', '--language', '1:de', '--track-name', '1:AC3', '--language', '2:en', '--track-name', '2:AC3', '/mnt/path/to/files/S01/int/my-show-s01e02-br-720p-int.mkv', '--language', '0:de', '--track-name', '0:VobSub', '/mnt/path/to/files/S01/int/my-show-s01e02-br-720p-int-subs.idx', '--title', '', '--track-order', '0:0,0:1,0:2,1:0'] 
2025-10-22 14:30:10,451 DEBUG    vsutillib.pyside6.classes.QOutputTextWidget OTW0003: [mainApp.main] Command 3. ['/usr/bin/mkvmerge', '--ui-language', 'de_DE', '--priority', 'lower', '--output', '/mnt/path/to/files/S01/int/new-my-show-s01e03-br-720p-int.mkv', '--language', '0:en', '--track-name', '0:', '--display-dimensions', '0:960x720', '--language', '1:de', '--track-name', '1:AC3', '--language', '2:en', '--track-name', '2:AC3', '/mnt/path/to/files/S01/int/my-show-s01e03-br-720p-int.mkv', '--language', '0:de', '--track-name', '0:VobSub', '/mnt/path/to/files/S01/int/my-show-s01e03-br-720p-int-subs.idx', '--title', '', '--track-order', '0:0,0:1,0:2,1:0'] 
2025-10-22 14:30:10,457 DEBUG    vsutillib.pyside6.classes.QOutputTextWidget OTW0003: [mainApp.main] Command 4. ['/usr/bin/mkvmerge', '--ui-language', 'de_DE', '--priority', 'lower', '--output', '/mnt/path/to/files/S01/int/new-my-show-s01e04-br-720p-int.mkv', '--language', '0:en', '--track-name', '0:', '--display-dimensions', '0:960x720', '--language', '1:de', '--track-name', '1:AC3', '--language', '2:en', '--track-name', '2:AC3', '/mnt/path/to/files/S01/int/my-show-s01e04-br-720p-int.mkv', '--language', '0:de', '--track-name', '0:VobSub', '/mnt/path/to/files/S01/int/my-show-s01e04-br-720p-int-subs.idx', '--title', '', '--track-order', '0:0,0:1,0:2,1:0'] 
2025-10-22 14:30:10,462 DEBUG    vsutillib.pyside6.classes.QOutputTextWidget OTW0003: [mainApp.main] Command 5. ['/usr/bin/mkvmerge', '--ui-language', 'de_DE', '--priority', 'lower', '--output', '/mnt/path/to/files/S01/int/new-my-show-s01e05-br-720p-int.mkv', '--language', '0:en', '--track-name', '0:', '--display-dimensions', '0:960x720', '--language', '1:de', '--track-name', '1:AC3', '--language', '2:en', '--track-name', '2:AC3', '/mnt/path/to/files/S01/int/my-show-s01e05-br-720p-int.mkv', '--language', '0:de', '--track-name', '0:VobSub', '/mnt/path/to/files/S01/int/my-show-s01e05-br-720p-int-subs.idx', '--title', '', '--track-order', '0:0,0:1,0:2,1:0'] 
2025-10-22 14:30:10,468 DEBUG    vsutillib.pyside6.classes.QOutputTextWidget OTW0003: [mainApp.main] Command 6. ['/usr/bin/mkvmerge', '--ui-language', 'de_DE', '--priority', 'lower', '--output', '/mnt/path/to/files/S01/int/new-my-show-s01e06-br-720p-int.mkv', '--language', '0:en', '--track-name', '0:', '--display-dimensions', '0:960x720', '--language', '1:de', '--track-name', '1:AC3', '--language', '2:en', '--track-name', '2:AC3', '/mnt/path/to/files/S01/int/my-show-s01e06-br-720p-int.mkv', '--language', '0:de', '--track-name', '0:VobSub', '/mnt/path/to/files/S01/int/my-show-s01e06-br-720p-int-subs.idx', '--title', '', '--track-order', '0:0,0:1,0:2,1:0'] 
2025-10-22 14:30:10,473 DEBUG    vsutillib.pyside6.classes.QOutputTextWidget OTW0003: [mainApp.main] Command 7. ['/usr/bin/mkvmerge', '--ui-language', 'de_DE', '--priority', 'lower', '--output', '/mnt/path/to/files/S01/int/new-my-show-s01e07-br-720p-int.mkv', '--language', '0:en', '--track-name', '0:', '--display-dimensions', '0:960x720', '--language', '1:de', '--track-name', '1:AC3', '--language', '2:en', '--track-name', '2:AC3', '/mnt/path/to/files/S01/int/my-show-s01e07-br-720p-int.mkv', '--language', '0:de', '--track-name', '0:VobSub', '/mnt/path/to/files/S01/int/my-show-s01e07-br-720p-int-subs.idx', '--title', '', '--track-order', '0:0,0:1,0:2,1:0'] 
2025-10-22 14:30:10,478 DEBUG    vsutillib.pyside6.classes.QOutputTextWidget OTW0003: [mainApp.main] Command 8. ['/usr/bin/mkvmerge', '--ui-language', 'de_DE', '--priority', 'lower', '--output', '/mnt/path/to/files/S01/int/new-my-show-s01e22-br-720p-int.mkv', '--language', '0:en', '--track-name', '0:', '--display-dimensions', '0:960x720', '--language', '1:de', '--track-name', '1:AC3', '--language', '2:en', '--track-name', '2:AC3', '/mnt/path/to/files/S01/int/my-show-s01e22-br-720p-int.mkv', '--language', '0:de', '--track-name', '0:VobSub', '/mnt/path/to/files/S01/int/my-show-s01e22-br-720p-int-subs.idx', '--title', '', '--track-order', '0:0,0:1,0:2,1:0'] 

Otherwise, a nice tool! Thanks for that!
Cheers